As it turns out, the adage “one bad apple can spoil the whole bunch” is true, especially when it comes to teams. Because we overweigh negative information and are open to counterarguments, negativity in the workplace can quickly become contagious. It only takes one loud voice away from the table to raise the doubts and suspicions of otherwise satisfied colleagues. Over time, the incessant complaints of one or more team members can undermine team morale and cast a shadow on the leader’s credibility.