I'm not sure there's even a cohesive enough argument to respond to there.Keane is not someone who you'd trust to take control of the dressing room and has show it many times. Neville seems to be given up on management after that experience.
Solskjaer has managed Molde. Barca had a structure in place build by Cruyff, Real spend a lot of money in a two horse race at the time. Far from similar circumstances.
We can lose CL for another year if we don't make 4th(which is a long shot anyways).