I'm stealing this point from James Horncastle on the Totally Football Show, but the thing Ole has to be given credit for is being able to create a seige mentality, but not in the way Mourinho does it.
I mean Jose built his career on that seige mentality of we've got our backs against the walls, they're all out to get us, it's us against the world, let's come out fighting etc.
With Ole on the other hand, his seige mentality seems almost to be a sense of Man United exceptionalism. 2/3 of our first choice central midefield out injured? We'll be fine because we're Manchester United. 2/3 of our first choice attack out injured? We'll be fine because we're Manchester United. Have to trust young players in difficult games? We're Manchester United.
All of us can't help but notice that there's something about the club that reminds us of Sir Alex again, and more than the searing pace on the counter, the fluidity in attack and the general positivity around the club, I really think it's that sense of exceptionalism. I mean it's obviously not entirely valid and has led to mawkish cries about the "Manchester United way" for the last 5 years as we've had our fingers burned over an over again but I do think that's the biggest difference. It's what stands out whenever you heard - and still hear - Gary Neville or Paul Scholes or Rio Ferdinand (or even Ole before he became manager) talk about Sir Alex and their time at the club: that somehow the rules that apply to the rest of the world don't apply to us; that for all our trophies, and the quality of our players, our worldwide fanbase and Charlton-Law-Best, somehow the most impressive thing about us was just this ethereal quality of being Manchester United.
Again, this hubris about us being exceptional is what got us David Moyes, but the "not arrogant, just better" attitude is also probably what made us so successful for so long and Ole seems very much to be willing to embrace it.