Without going back to doublecheck over 100 posts, I think this is the first mention of that touchdown pass. That was a good pass and catch. Bush should get credit, as should Smalling.
Smalling doesn't seem to be getting as many targets as I would expect, regardless of who is playing QB. Is he getting double teamed at the line? In the secondary? Is there an answer for getting him the ball more often?
As to the bigger question, I'm pretty torn between MJ and Bush. Both offer different strengths right now, but the reps could be very valuable for MJ. Bush's reps are valuable in a different way, but only to the extent that his starts translate to wins. I think if I had to answer right now (and assuming Bush stays healthy for 7 more games), I'd ask the staff to look for one more game to get MJ significant reps...preserve the redshirt, give him as much experience as possible, and reevaluate next spring/summer.