Is twitter a necessary part of athletics?

Another twitter mishap among student-athletes has led to the banning of the social networking Web site for football players at Texas Tech. After offensive lineman Brandon Carter was suspended indefinitely for violating team policy, the former captain posted the news to his twitter before the school announced it: "I am not a captain anymore and will not be playing this week. Good luck red raiders ill still be cheering on my family from the stands!!:)" Later, linebacker Marion Williams tweeted "Wondering why I'm still in this meeting room when the head coach can't even be on time to his on meeting." Head coach Mike Leach told the media during the Big 12 coaches teleconference that "anyone who wants to play for us doesn't have a Twitter page." Carter's comments and William's account have since vanished. Leach's statement may not be in the form a written document outlying his social networking policy, I think his message is...