If Barkley was still in, we’d be hoping for him too. If RG3 wasn’t in the draft, we’d see a whole lotta’ more pro-Flynn guys (and gals). What Bahama states is true. Right now it’s the timing of choices. We shouldn’t use the word “unproven” as much as we should use the phrase “hasn’t been given the opportunity”.
For me, odds are better at getting Flynn than RG3 or Manning. I won’t be bothered by anyone one of the 3 either.

He didn’t really do anything under centre. He rarely made it past his first read, if it wasn’t open immediately, he’d just roll out to the right 90% of the time and hope it was.
It could be argued that RG3 may not take the adjustment to a west coast offense well. West Coast qbs usually have to make an instinctive throw to one of 5 targets, while he’s obviously very smart, theres a difference between smart and instinctive.

We will play the west coast, also Philbin knows if Flynn is franchise material

With Peyton ailing and RG3 costing a kings ransom, he looks like the only real option (unless someone like Tannehill rises in the draft). It would also be nice to get him in free agency and shore up another position (like pass rusher) in the first round. But, that all depends if the coaching staff thinks he is for real.