Real life doesnt work like that.
The player's his fallen out with this season publically
Terry,Hazard, Costa,Matic, Fabregas...and thats just the ones we know about. That's Chelsea's spine. Bench them and they will want out , and replacing them would be quite difficult and costly. And what happens when Jose falls out with even more players. At Real Madrid he fell out with Pepe, Cristiano Ronaldo, Ramos and Casillas. Imagine the carnage caused if they followed that suggestion.
It's much easier to replace 1 man, and that has worked quite well for Chelsea in the past.