The Dasher Team defines "Team Player" in the following way:
Go the extra mile:Be willing to do whatever it takes to accomplish the job, plus a little bit more. Take the next step to solve the problem. Even if it takes doing something not in your job description, it’s the extra mile that makes for a superstar. Be a superstar.
Speak straight:Speak honestly in a way that moves the action forward. Make clear and direct requests. Say what you mean, and be willing to ask questions, share ideas or raise issues that may cause conflict when it’s necessary for team success. Address issues directly with those who are involved or affected.
Share information:With appropriate respect for confidentiality, share information freely. Learn to ask yourself, “Who else needs to know this?” Information is a valuable team asset – find it, share it and use it.