Based on what I've seen out of Brunell so far, I'd rather see Clemens if Sanchez goes down. I know the Jets are probably screwed with either one, but Brunell looks lost.
Although it pains me to say it... Clemens is the better QB at this point. I want Brunell to hold the clipboard as I want Sanchez to confront with him and not Kellen... but If Sanchez gets injured for a couple of weeks throw Clemens in there...
he's pretty quick for 44, and is able to put up 290 benching. He honestly has a good arm, but his accuracy is awful haha.