No, he has favourites. This quote from Ba applies to more people than just Mourinho: Sometimes when you are at a club with a lot of big stars, the name counts for more than the statistics.
I haven't got a clue how on earth you know what his approach is. He is someone who has come from the Egyptian league and made an impact on the biggest stages to be where he is now. People are dismissive of players they know little about or aren't from bigger countries.
Willian has though?! A player needs a consist run of games to improve his fitness and sharpness. He can't deliver deliver at the drop of the hat, and most can't either. People need to wake up.
More people need to realise this. I really can't understand why people are dismissive of him. He has to quality to deliver, but hasn't been given the chance.