The reason we are not a good team probably has more to do with so many players that want things done their way and want their touches than it has to do with Rondo.
Lee, Barbosa and Bass have all complained about getting time and touches. That's never happened here during the Big Three era because it was TEAM first. I don't see Sully, Pierce, KG, or Bradley doing that. Just players that want their games not being sacrificed for the good of the team.
Seems to me this must be the reason this guy has been on 4 teams in 5 years.
Maybe this has something to do with the fact that both Bass and Barbosa only really have one talent - scoring. You can't score if you never get the ball, and if these guys aren't scoring their value on the team goes down, and they open themselves up for being traded to lottery teams.
It's a players responsibility to do their best to make the most of their skills, but if you are put in a position where you can't do that because of the system that's in place around you, then I can understand how that could become highly frustrating.
As for Lee's attitude, he actually has had a positive reputation everywhere he's gone for being a good team mate and a positive locker room guy. Same can be said for Ray Allen, and also for Bass. I've never really heard any complaits about Barbosa being a bad locker-room guy either.
Rondo is well known around the league for havig not such a positive attitude, and for being a little selfish and arrogant.
So, if anybody has the personality problem...I suspect it's Rondo...though I obviously have no proof of this.