Tell me I fall for everything English football media feeds me. I'll go first:
But after us? Feels like he lost the plot. At Real he had Cristiano in god mode, on top of that unlimited cash and only won one (uno!) league in 3 years? Scecond time at Chelsea starts amazing and then ends up getting fired at 14/15 place?? At United he spends ~500m (you can build up a team from scratch with that money and win titles) to play below average unwatchable football. And since leaving us, champions league is a taboo for him..
What exactly do you mean by CL is a taboo for him?
He took Real Madrid to three consecutive CL semi finals in his three seasons there. Looking at it 15 years after his move makes it seem underwhelming, looking at it in 2013 it means that:
- He dethroned what was considered the greatest team in the world and for some the greatest club side of all time.
- He took Real Madrid past the Round of 16 for the first time since 2003-4.
- He took Real Madrid to the semi finals of CL for the first time since 2002-3.
- He won the league against Barcelona, a side that was beating Real Madrid 5-0 for fun.
- He made Cristiano Ronaldo a striker.
- He didn't spend a shitload, heck Barcelona outspent them - possibly for the first time ever - during that three year period.
(Real got Ozil, Di Maria, Khedira, Carvalho, Varane, Sahin and Modric during that period and a few othes for a total of 150m euros whereas Barcelona got David Villa, Mascherano, Alexis Sanchez, Fabregas, Adriano from Sevilla, Jordi Alba, Alex Song and a couple of others for over 200m, and net spend wasn't that much different either)
La Liga clasicos before and during Mourinho's time at Real Madrid.

Scoreline aside, it was the first time in years that Real Madrid didn't fear going out against Barcelona.
Do I need to remind people that Real Madrid bought Cristiano Ronaldo, Kaka, Benzema, Xabi Alonso and got Raul Albiol back from Valencia the summer before Mourinho joined them and they still fell short in the league while they crashed out of CL to Lyon?
Cup:
And this CL defeat:
Now, do we talk about winning with Chelsea and making Manchester United look like a team that can win stuff?
Or how Tottenham reached a final despite every player hating him because they were soft losers that couldn't handle the pressure?
Or how he took Roma to two European finals, won one and got robbed in the other?
Going for a big contract to Turkey isn't an insult. It's a well respected side that has a big following and could succeed in the secondary competitions of Europe. Sure, it's no CL contender, but Mourinho is still one of the best managers around. It's just that football has changed so much that managements don't have the appetite to handle such coaches and players at big clubs have too much of an influence to be following a coach's orders.
There's no such thing as a coach "losing it" or being "out of form". Look at Conte for example. Sucked hard at Tottenham, came to an environment that suited him and made Napoli a contender after they had a terrible season the year prior. You don't think there's such a place for Mourinho?