i say that because it seems from what i see he has never been tested in front of a crew, that and since he isnt coming on him self and asking he does not seem to have the self esteem needed. then again not having enough confidance in his own abilities and needing validation by asking a bunch of people on a message board puts out warning signs he will be jello under pressure.
then again, maybe im wrong... but as a performer and someone who has worked booking talent and learning to spot the ones who wont make it... im offering my professional opinion.
still if he can do it, i wish him the best, but you asked a question and i am giving my honest analysis.
good luck.