There is enough talent on the offense to win games. Wilson is a legit running back that Petrino is playing games with. They may not put up crazy numbers, but they are good enough to score 20-28 points a game. All the players need to keep working and see what happens. They can make the call after the new coach and staff are hired. I don't think any offensive guys would leave if Brohm/Norvell was the guy.
Not much talent on defense especially on the Dline. The defense overall is the problem though and it is really hard to turn a bad defense into a good defense quickly. This defense is incredibly bad and the only way to fix is to recruit. Neither Brohm nor Norvell have great defensive staffs which is a concern. That is were Campbell is an interesting option because they are really solid on defense.