Whether or not I agree with the notion that Jones should start this week, your original position was that Cam should not be allowed to play at all. My point was that such is a misunderstanding of practice v. game. If Cam is ready, he should take snaps in the exhibition. That's how you prepare for the season, and goodness knows Cam needs all the prep he can get.
And none of us should give a rat's ass who starts at QB, if it's just for the sake of starting because Cam missed time. What matters is who the QBs play with and, to a lesser extent, how long. So, if BB puts Jones in for the first drive with the ones, then pulls him and plays Cam for an entire half, with the ones, what is it going to matter that Jones took the first snaps?
Probably nothing