Guy is a bum who was always more about himself than his team winning.
When he left Boston all he did was talk smack about the staff and word not so mysteriously leaked out how he was a selfish player who refused to listen to the team doctors and teammates disliked him for always putting himself first and prima donna
He also requested a trade from Indy right after signing the max contract due to a coaching change or something. Bird had to say no due to BYC rules, but it adds to the me-first thing.
He also was a PF in Indy, refusing to call himself a C. Al Harrington was the "center."
I think it was because there was more competition at C for the ASG.