Mourinho short term thinking, throw loads of money at the wrong people who aren't the right types, Eto'o was looking for a final pay day so left, Lucio was on huge wages and was awesome but only had a couple seasons left. They sold the creative heart and sole of the team in Ibra(for awesome money), sold Balotelli. Bunch of managers, ultimately this is what I say about managers.
Most managers spend the first couple years with a heavy legacy of the team that came before. Mourinho added defensive strength to a good attacking Chelsea side, but after 3 years they were a boring defensive side that struggled offensively too often.
Inter were a good defence already with Ibra upfront, thats a recipe for success, bring in a defensive manager and you fluke a champs league win off defensive anti football, but ultimately both teams have struggled since as they became overly negative.
As yet I've not seen Mourinho do anything long term with a club, 2-3 years down the line from the previous managers and his teams struggle to break down defences, struggle to play well and start to seemingly suffer from several players attitudes going down the toilet. Real were awesome BEFORE he joined, he did worse the first year, largely because he tried to make them more defensive, with a crap defence, the second year he went full on offence, and won the title, the third year and they've fallen to pieces, looks set to be their worst finish in quite a few seasons this year, turmoil in the dressing room.
They may have beaten Barca but they had 28% possession. How much possession did Inter have in their champs league games on the way to the title.
That kind of football can't lost long, Real have lost a string of embarrassing games they would never usually lose.
I think the very specific way in which he motivates players, and resorts to anti football in big games can work short term, but the longer they do it the more players run out of ideas, the more opposition work them out, and the more his tactics seem destined to fail.
So what happened to Inter, Mourinho, what happened to Real's poop season, Mourinho.
There is a reason almost no other manager resorts purely to negative/anti football, because long term it fails, outside of Mourinho the only other manager I can think tries the same tactics so often, is Stoke. Building a Stoke like defence into an already great offensive team can work well, but after a few years, the team falls apart and is just Stoke....