If you’re stuck with teammates who exhibit certain annoying traits, focus on changing your attitude in dealing with them. That’s harder—but far more effective— than trying to influence bullies, back-stabbers or arrogant bores to “fix” their personality. Here’s why: If you push a know-it-all to consider alternate views, he’ll just grow more sure of himself. If you pressure an ambivalent person to make a firm decision, he’ll become even more wishy-washy. Instead, listen to others’ input dispassionately and then take appropriate action on your own. Don’t get irritated or feel the urge to change someone who bothers you. Accept others’ failings and move on. This way, you won’t waste time or energy getting upset.