With proper coaching and some continuity, I think RG3 would be decent.
Look at the mess he's dealt with so far in his career. His arm is a rocket.
I'd take him as our #2 in a heartbeat. He's only 25, so with some grooming.....who knows.
I would take him too. But it would come with conditions if I was fully in charge.
1. Cut your hair. It's time to grow up and you're supposed to be a leader.
2. No more "RGIII" or "GRIFFIN III" on the jersey. You're now Robert Griffin. That's it.
3. You have no shot of earning the starting gig before Tony is ready to retire, so don't even think about it. Be ready if your name is called for injury or garbage time.
4. Study, study, study. Other than taking practice reps, your primarily responsibility should be to be in the film room. Take film home. Put it on your iPad. Put it on your phone. If you're not hanging out with your family or working out, or enjoying a little tiny bit of leisure time, you should be studying our playbook and studying film not only of yourself, but of this offense and our opponents.
5. Keep your mouth shut. You will use coachspeak like everyone else when talking to the media. You are not an individual, you are the backup quarterback for the Dallas Cowboys - that's it. You're part of a team now. Act like it.