I have 100% working method to easily (ok, it's easy for ultra-pro managers, like me) beat Mourinho. So you should:
1) Have a bad season

2) Have zero training bonus

3) Have not very great team

4) Join the match not earlier then 0:41.
Mou team:


And the result is not bad - 7:0.

Easy.
Pro-tip:
Spoiler
Just don't care. This game is made of 100% bull****.