I don't think most of those guys are goofs at all. I think they are acting the way they are because of who their coach is. Koscheck is a douchebag and it's rubbing off on his team. Aside from Bruce Leroy, GSP's team has been humble and respectful, just like GSP. Kos's team has been cocky and arrogant, just like Kos. Koscheck is coming off really bad in this show and GSP the opposite. Koscheck isn't upset for his team member when that guy loses, he's upset that he, as a coach, is losing the show to GSP. GSP on the other hand is legitimately concerned for and supportive of his fighters. The guys under GSP are going to have a much better chance of still making the UFC, regardless if they win the show or not, because of how their talent is being nurtured. Kos's team members will need to go another route.
Also, if I were on this show and was on Koscheck's team, watching the show now I would seriously pissed that I didn't get to be on GSP's team.