Bad apples decrease managerial effectiveness by ~40% – think and measure all the time you spend with the bad apple, all the meetings about the bad apple, and all the other people who have to work around the scheduling and damage done. Dealing with 1 bad apple is a great deal of your time as a manager!
Bad team member removes ~$3000 of value from a team, while a high performer adds ~$1200. It takes 2.5 high-performers for 1 bad apple to break even!
What can you do about bad apples on teams?
Remove or marginalize bad apples.
Put all the bad apples on one team if you can’t remove them. Don’t try to dilute their toxicity by spreading them over several teams.