I was only half joking by saying Strachan.
Things go in cycles, and where a few years ago it was all about having a tinkerer in charge, with Mourinho and Wenger being successful being smarter than their counterparts, now I think the opposite.
The one constant is Ferguson who I don't think is a tactical wiz, just has a lot of heart and instills that in his players (albeit has always had a tactical right-hand man).
The managers over-achieving (Redknapp, Dalglish, Pardew, Pulis) I think are just letting the boys play and not focussing so much on rigid structure and tactics. So rather than a Mourinho or Benitez who will come in and Ramos the place up, perhaps someone who will maintain the status quo is what we need.
Strachan, O'Neill, maybe Moyes (and yes Warnock, just for Mick) I feel will maintain a similar ethos at the club. No point sitting pretty in 3rd then bringing in a manager who will turn the squad, structure and playing style upside down. Hell, maybe Technical Tim is the right man for the job then.