Ok but you're making a completely different point than the one I addressed above. Your original point was "I think Young starts and if he doesn't look good - and I agree he was very average last night before getting hurt - we see Hall get a chance" and now you are talking about injury.
Because his durability is the primary point I've been making all along.
If you want to talk about Young getting replaced for injury concerns then that's certainly a valid conversation considering he appeared to be banged up pretty decent last night. But the point you originally made was based on his performance and, contrary to your original suggestion, he's not in danger of losing the job (assuming Henry is out of course) based on his or Hall's performance.
My original point was that he reminds me of Tatum Bell because he (as we sit here today) does not appear to be durable enough to withstand the rigors of being a starting RB in this league. I stand by that point. As far as his performance I see no reason to dismiss the possibility of him losing carries should he fail to perform well. Shouldn't that be viewed as rather obvious? The Broncos are in the thick of a division race; I'd be shocked if they risked a playoff spot just to keep an undrafted rookie in the starting lineup who wasn't performing without at least seeing if his backup might be able to do better.Now, discussion of how Young will or won't perform is speculation.
So far, he's looked very good in two of his starts and no better than average in his third. So overall, his production has been good. However, his durability is clearly an issue and remains the primary issue I've been discussing.