Professional athletes have a choice whether or not they want to try and get on with a team. Russell were terrible and a bust with the Raiders. That is a fact. However, the quality of starting quarterbacks in the league is so poor that if he has any sort of skills he might be able to make it with a team. If I were running a team I wouldn't want him anywhere near my team but these are desperate times for NFL quarterbacks.
First of all he has not chance. Second, he has been out of the league two long and by now he will lost a lot of talent. If he comes back now it will be like asking an 80 year old man to come play in the National Football League.
JaMarcus Russell is by all measures an absolutely terrible quarterback. He has also been arrested multiple times and has shown that he is not a good person. He can never seen to control his weight, and his throwing arm is exceptionally weak. He would be a fool to attempt a comeback.
JaMarcus Russell was a disgrace to the NFL and to football in general. He is probably the biggest draft bust ever in that he cost the NFL teams loads of money and time for a dinky little pay out. He also was arrested for abusing codeine. That is not the kind of role model we need in the NFL.
I do not think that JaMarcus Russel should try to make a comeback. When he was in the league it was a total disaster. He is one of the biggest busts in NFL history and he set the Raiders back a few years. He couldn't get it done then and I doubt he can now.