I don't know Allen Iverson. My impressions of him as a younger man basketball-wise is that he was a supreme talent -- able to do things very few could do in the history of the game. He was an 'Energizer Bunny' on the court, endless energy for more than 40 minutes every game. His 'practice' diatribe notwithstanding, I never believed that this was a guy didn't practice. Of course he practiced. And he carried a team on his shoulders to the NBA Finals.
I have no idea how much of a shell of his former self he is today in terms of basketball skill. But, if he can be AI of old for short stretches, or nearly AI of old offensively, then I'd be curious, if not interested. AI (to my knowledge), never played on a team with KG, Paul Pierce and Ray Allen, who I imagine are not shrinking violets in the locker room or on the practice floor. Rondo too, is a strong-headed and now veteran leader on this team -- who won't be intimidated in the least by Iverson. Also, Doc Rivers probably is the perfect person to handle and inspire a 38 year old Iverson.
I am not saying I want him on this team because I don't know his skill level, but I wouldn't rule him out based on impressions of his former self. Leopard's spots actually do change with age.