"Watch Out For Team Destroyers!
Here are some of the problems that can rip the team-building process apart.
Jealousy. Be on guard for jealousy whenever a new member is hired into the group. Go out of your way to tell other team members how much their work is appreciated.
Cynicism. Some people are just negative by nature. Others might feel your company can't possibly prosper or they just don't like small companies, big companies, or whatever . . . . Be sure you are emphasizing the company's positive achievements to the group as a whole. And don't hesitate to confront any openly cynical individual and demand their behavior change at once.
Lack of confidence. Some people lack confidence in themselves and view attacks on their opinions as attacks on themselves, responding with statements like "Are you telling me my fifteen years of experience don't matter?" Stop any discussion like this immediately and, in a private one-on-one meeting, patiently point out the defensive behavior"