The BAD APPLE Effect – Why Your Team’s Performance Keeps Dropping
A manager’s job security, professional status, authority and career prospects depend on team performance. When you, the manager, can consistently increase team performance regardless of who is in your team, your job security, status, authority, promotion opportunities and pay will all INCREASE. When team performance drops, so does your job security and benefits. If you CANNOT stop team performance dropping, your bosses most sensible option is to replace you, the manager.
Your team’s performance is a VERY BIG DEAL to you personally.
The BAD APPLE Effect – Why Your Team’s Performance Keeps Dropping
- Team Standards Drop Faster Than They Rise
- Why The Worst Team Member Creates Extra Work For Everyone
- How morale and motivation drop Through Perceived Injustice
- The Impact Of The Manager Being Pulled Into Damage Control
- Team Culture Shifts In The Direction Of The Lowest Standard
- The Long-Term Consequences Are Often Invisible Until It’s Too Late
- This WON’T Happen To Me!
Every Team has a Worst team member
That team member has a BIGGER IMPACT on team performance than most managers realise.
Here is why.
Leaders and managers often assume that team performance is the sum of individual contributions. Add strong performers, remove weak ones, and the result should be predictable. But decades of research in organisational psychology show that teams DON’T OPERATE in this way. They behave more like ecosystems — sensitive, interconnected, and surprisingly vulnerable to disruption.
One of the most striking findings is the bad apple effect: the discovery that a consistently negative or underperforming team member can meaningfully degrade the performance, morale, and culture of an entire group. Controlled experiments and real‑world studies consistently show that one person’s behaviour can reshape team standards, the team culture, and the productivity of everyone around them.
Understanding WHY this happens is essential for managers who want to IMPROVE the performance of their team.
Just as importantly – far too many managers think their worst team member is NOT having any real negative impact on their team. 90%+ of the time, they are wrong. The impact on manager prospects is often fairly invisible to them personally, until it is FAR TOO LATE.
Don’t let this be you.
Team Standards Drop Faster Than They Rise
The team standards and norms – the unwritten rules about how the team behaves and operates – are fragile. The manager and team take time to build trust with, and reliance on, others within the team – that create foundation for the team’s standards. BUT this trust and reliance can unravel surprisingly quickly.
When one person regularly misses more deadlines than others, takes on less responsibility, displays more negativity, does less work … the team’s behavioural baseline shifts. People unconsciously recalibrate their expectations:
- “If they can get away with that, maybe I don’t need to push so hard.”
- “Maybe this is just how things work here.”
- “Why am I the only one staying late to fix this?”
This phenomenon is rooted in social contagion: humans are wired to mimic the behaviours around them, especially those that REDUCE effort or discomfort. High standards require energy and effort to maintain, from both manager and team. Low standards spread effortlessly, simply because you only have to do less for it to happen.
Over time, the team’s collective performance drifts DOWNWARD — not because people lack ability, but because the standards in the team keep being diluted.
Why The Worst Team Member Creates Extra Work For Everyone
The worst team member doesn’t just contribute less than other team members. They CREATE MORE WORK for everyone else in the team. To hit team goals, if one person is doing less, others must do more to create a certain level of output.
The manager and other team members have to:
- Spend more time monitoring the worst employee’s progress
- Put in the work to correct the additional errors made
- Take on additional tasks – e.g. deemed too important for the worst employee to do
- Provide emotional support to colleagues when they get frustrated, angry etc with the worst employee
- Absorb the consequences of missed commitments
This extra time, attention and work the rest of the team members put in drains attention, effort and energy from the higher value, more important tasks. The higher value tasks don’t get done as well. Higher performers are forced into a cycle of compensating for weaker team members. The team becomes more reactive rather than proactive, spending more time fixing problems than undertaking higher value, more important work.
When people are overloaded, creativity, problem‑solving, and long‑term thinking suffer. The team becomes less innovative and more risk‑averse. The risk of the higher performing team members LEAVING the team goes up. They can get better opportunities and rewards elsewhere for the same level of work.
The bigger the gap between the worst employee and the average of the team, the more work the worst employee creates for everyone else in the team.
How morale and motivation drop Through Perceived Injustice
There are few things that demotivate team members more than unfairness. When colleagues who do less, perform at a lower level or behaviour worse … are treated in the same way you are, consistently over time, you feel:
- Undervalued – your extra efforts and ability don’t seem to matter
- Exploited – others are not working as hard or behaving worse while your standards and work ethic are taken for granted
- Frustrated and angry – You are doing more for the team and getting nothing back
- Cynical – “Why should I continue to be taken advantage of”
The emotional and attitude shift is fairly subtle at first and gets bigger and bigger over time. Engagement drops. Discretionary effort disappears. People stop volunteering ideas or going the extra mile because they know their extra effort is not rewarded.
Again, the better performers are much more likely to leave in this situation. This compounds the problems, and you are left with the weaker team members AND it is much harder to keep any better performers you recruit into the team.
Creating obvious visible fairness in a team is essential to avoid this downward drift.
The Impact Of The Manager Being Pulled Into Damage Control
The bigger the gap between the worst employee and the average of the team, the more likely the manager will be pulled into damage control. Instead of working on solving problems for the team, co-ordinating team efforts, reinforcing direction, developing team members skills etc, the manager finds themselves:
- Resolving increased conflicts within the team
- Redistributing work and co-ordinating error resolution
- Monitoring performance
- Managing the emotional fallout – the frustration, anger and perceived unfairness within the team
This reactive work drains manager time and energy and sends a powerful signal – the team’s energy and efforts are to be spent on problem containment rather than on growing, developing and hitting targets.
When the manager spends their time firefighting, the team loses its direction. Long term goals fade into the background, replaced by short term crisis management.
The impact – team performance drops, sometimes drastically and quickly. Everyone gets tarnished with the same brush.
Team Culture Shifts In The Direction Of The Lowest Standard
For all the reasons we have just been through, the most profound impact of the worst team member is on team standards and culture.
Standards and culture are shaped not by what the manager SAY, but by what they TOLERATE. When worse than average performance or behaviour goes unaddressed by the manager, it becomes part of the team’s identity.
Team members conclude:
- “This is acceptable here.”
- “This is who we are.”
- “This is how things work.”
Once team standards and culture start shifting downward, it becomes very hard to stop. Over time, the downward shift gathers momentum, making it harder and harder to stop and reverse. New hires adapt to the lowered norms – they don’t know anything better. High performers lose faith and think about leaving. The team becomes defined by mediocrity rather than excellence.
Is average, okay, mediocracy what you are willing to accept in your team? It is an important question to answer as honestly as possible to yourself.
The Long-Term Consequences Are Often Invisible Until It’s Too Late
The bad apple effect rarely causes a quick collapse in team standards, behaviour and culture. Instead, the bad apple effect creates a slow, steady DECLINE in:
- Team productivity
- The engagement of the team
- Innovation and risk taking by team members
- Psychological safety – as individuals become more concerned about the safety of their jobs
- Retention of the higher performers drops and the ability to attract more high performers into the team is hard
- And most of all – a very noticeable decline in team performance.
By the time the symptoms of team decline become obvious, the underlying damage to team standards and culture is engrained within team behaviour. Changing team behaviour and expectations becomes very hard. One of the most practical steps to take when this happens is to REPLACE THE MANAGER.
How To Manage Difficult Employees Course
This WON’T Happen To Me!
90%+ of managers can’t imagine they will let performance or behaviour issues get so bad as to actually significantly impact the performance of the team. People problems in your team are more likely to occur if you think this.
43% of 2,700 leaders interviewed stated that they found giving corrective feedback stressful and difficult. i.e. they didn’t do it or didn’t do much of it.
Giving corrective feedback is an essential part of improving your worst employee and stopping the rest of the team lowering their own standards, performance and behaviour. Most leaders find giving corrective feedback stressful, difficult and often in-effective because they don’t take several other necessary steps in parallel.
Resolving people problems in teams and improving your worst employee requires you to take multiple INTERDEPENDENT actions. Miss one or two or don’t do them very well and your ability to get improvement from your worst employee drops off a cliff.
It is really easy to put off taking action with your worst employee ESPECIALLY if the problems are not particularly bad or noticeable. This is nearly always how significant people problems in teams start.
The quicker you take action, the easier it is for you to get significant improvement.
What action should I take, you might be asking yourself.
Our How To Manage Difficult Employees Course details out every step – what you need to do, to what level and how to do each step.
How to Manage Difficult Employees – Course
The course teaches you a very fair and effective system that you can use with anyone – from a slightly below average team member to a nightmare employee – and it will get you results and guarantees you improve team performance.
Our system improves your worst team member in a very fair way. You can tell the entire team exactly what steps you will take and why with any underperformer or problem behaviour and their trust and motivation will INCREASE, not drop.
You can use this system with your worst employee WITHOUT damaging their trust in you, their relationship with you or their motivation and engagement.
You will always get improved team performance through using our system and implementing each step well.
Click on the button below to join our How to Manage Difficult Employees course
How To Manage Difficult Employees Course
