My opinion, remembering I'm the best part of 4000 miles away, is that McRorie is a very "Robson type" of player, and I mean that in terms of his management style. If he goes, and if we stick with Robson, we need to replace McRorie with someone very similar as I believe he's a big part of Barry's system and plan. We don't need superstars in every position, we need the players that work well both with the manager and in his/her system.
Fergie built a team that way.