We need to be smart this time round and embrace the fact that this needs a massive rebuild and that in the meantime the manager will have to work with a hugely flawed squad. Sure having an attacking minded mentality is important but one must know how to switch things around up till we get rid of all the tripe. Thus there's no space for system managers, not yet
I believe that the manager's role should be diluted to that of head coach. We should bring in a top CEO, a top sporting director, dof, technical director and HoR like yesterday.
Once that happens then the head coach will focus mostly on tactics and man management. In such circumstances my choice would be McKenna
A- he speaks English as a first language, he understands the EPL and the country's culture.
B- he knows the mess united are in, whom to rely on and who the bad apples are
C- he certainly knows how to adapt to circumstances (youths, man utd, Ipswich)
D- he utilise a similar system that united currently use (4-2-3-1)
E- he lacks the reputation and the ego to stand to the huge changes united want to implement