When you look at the first 11. Silva has had signed for him ;
New goalkeeper
New left back
New centre half
New right back
3 new centre mids
3 new wingers
New striker
He has his team there and for whatever reason he isn't forming a new team out of them. You can argue they were signed for him but when the achievements of some of these are world cup, euros , premier League, seria a titles, with so many with tip level experience.
How can you then justify not playing them and wondering why on earth you find yourself in the bottom 3?