Things like pocket presence and the mental processes required to throw from the pocket in the NFL effectively take numerous seasons to learn. The fact that he can't do that now after his offense in college didn't have a playbook doesn't tell us much in either direction. I've watched every snap this year and there have been instances in every game where he's shown the ability to do that even when there was pressure (the pass to Paulsen that he ended up fumbling against the Raiders is a perfect example) but it's hit and miss right now which is about where it should be.
Let's put it this way, if you have an outside WR, a slot and a tight all lined up on the strong side. The outside guy runs a deep post, the slot guy runs about an 8 yard out route, the tight end runs a shallow cross and RG3 has a few seconds to throw it's his fault if he can't find anyone. If, on a night you know your O-line can't pass protect, you have 3-4 receivers and they ALL run routes that are either straight up vertical go routes or routes that stem at 15-20 yards or beyond, that's the coaches putting a player in position to fail and both these scenarios happened Sunday night. I can live with the former RIGHT NOW because of his lack of experience in anything that even resembles a pro offense, but if the latter keeps happening you can all breathe a sigh of relief. There are other ways to flatten the learning curve of a QB with RG3's experience in a pro offense than making him a running back, and it doesn't look like the Shannahans thought of one.