if Mourinho was available he should be the #1 choice, if he stayed at Chelsea till today and the Russian stayed out of his way MU would have only got 1 title. he is the best in league management.
that's a mighty big "if" though. In the last ten seasons, which club has Mourinho spent more than 3 seasons with? And how many clubs has he managed in that time?
This is not the manager we are looking for.
We could win the title with him, but winning the title once does not make a club great.