I think there could be a debate when Gray comes back. I think our running game is better with Gray because I am not so sure that we can lineup with 1 TE and 1 FB and run the ball like we did against Syracuse. If we can do that against quality opponents, I think Shortell will probably be the guy. However, my feeling is that our running game will need Gray in the Big 10.
That said, Max is playing great. If he continues playing great, it will be really hard to put him back on the bench. I don't think that means that Gray won't see the field, as Kill has always used a running QB in a super-wildcat mode when he was at Northern Illinois. But there could certainly be a QB debate in a couple weeks, if Max continues being effective.
All that said, it's really hard to say if the staff vastly overstated Gray's improvement. Gray struggled for most of the UNLV game, was fantastic against UNH and was hit and miss against Western Michigan. It's hard to say that he was playing bad when he went out. When he got injured, Gray had a 59% completion percentage, 5 TD to 1 INT, 168 passer rating. In contrast, last year, Gray had a 50% completion percentage 1 to 1 TD to INT, and a 114.5 passer rating. Statistically, albeit against poor competition, he was much better this season than last season. So it's kind of hard to gauge exactly where Gray was in terms of development.