The important factor for me if Ince (or any manager really) did come in would be his assistant and coaching staff, it does not really matter that Ince has little experience he has the face and reputation, if you back that up with good experienced coaches you have a winning formula. MON never took many training sessions (and before anyone starts I am not comparing directly), he had good staff to do it for him. RK did not have this to fall back on so never any plan B (sometimes no plan A).
Personally I could not stand Ince as a player, but maybe he has the kick up the arse, take no sh*t attitude this club needs. I never thought Keane would do what he has done, but his personality works for a mananger and I think Ince does too.