judging from some of his interviews like with rosenberg Show is pretty damn smart about the business and already has 17 years in, so I think hed be an good road agent, but in an age where size is mattering less and less in wrestling combined with the fact that he is seriously declining while never being an good talker, I dont see him being any more than his current role of jobber to the stars minus the years of service title run he will most likely get.
Bigshow is a great talker and the best in ring giant ever. He is also extremely dependable and can play many different roles , just like Kane .
People ask themselfs why does Big Show still take an impact well look at his size. I am not a Big Show fan, but he has the size and can talk on the mic and always put a threat to a champ (always a filler guy if there is an issue injury etc).