Mancini and Mourinho joined clubs with serious money to rebuild and like utter douchebags, both expected to just continue to spend massively forever, and got all upset and acting like morons when told something along the lines of, you've bought a squad, hows about trying to make it work better.
Mancini's entire season has been one of a manager passing the blame for his absolute inability to take a group of players and improve them. No better than Redknapp, buy form players, their form drops due to crap management, buy new form players, rinse repeat.
Mancini's only real success was winning a bunch of titles in an Italian league when all the competition were relegated/points deducted, in Milan's case they were going through a bit of a rebuilding phase and had the year with less points. He was an utter failure in Europe, and has continued to be the same manager as before, boring, incompetant, and has an attitude issue.
Because he wants them to, the players should all be able to just play a different formation, without ever practicing it, because the existing formation wasn't working, so when 3-5-2 failed miserably, it was the players fault for not being good at it, not the managers fault for never practicing it......
While certain individual players have failed at Utd, as a team on a whole Fergie has always gotten good performances, wins when required and a working team. Mancini failed miserably to do so this year, and against Wigan, and blamed it all on ousting players like De Jong for no reason and buying the wrong replacements, while complaining about lack of investment.
he's a joke, winning the league with City last year was stupidly easy with the squad he had. One real competitive team and beat them at the last second on GD, this year that same team improved slightly and City went miles backwards and sucked in other competitions.