So just to clarify your last paragraph you are in the keep playing rooney when out of form camp?
With the options we have now, it shouldnt be the case. It was okay till last season as we didnt have someone much better to do that anyways. Now with RVP and Kagawa, we have far too many options to play any player who's out of form for too long.
That said, the problem is that Rooney always takes games to get into the groove, benching him wont help things.
Still, the overall good of the team takes precedence. Off form = Bench and sub appearances to get back.