If he wins the battle at camp then he starts. Unfortunately he may pull that off due to weak competition more than anything else. I imagine McCarron was brought in to mentor and anything more is a bonus, I just wish he had done a little more in this league so far.
I know the QB's from 04-05 had the pedigree, but one thing I feel gets overlooked is that Eli was behind Kurt Warner, Rivers behind Brees, Rodgers behind Favre and even Big Ben was behind Tommy Maddox I think who had played a lot in the league. 3 of 4 HoF, I wish we had something close to help this huge investment that is Josh Allen. He may be the best of the 3 come September, but I think it would be best for him (and us) to wait.