Its context right? Its not football manager where you can throw
11 random players on the pitch. These squad players will be rusty, they havent played together properly, they might be a bit nervous. When you make so many changes then you have to be prepared for a poor first half, it generally improves in the 2nd half when they relax a bit more and get in the swing of it. Instead he turns it into the Jose show by switching out 4 players at half time... imagine those squad players are feeling great today... he's abysmal at player management. He switches out his new striker pretty quickly in the 2nd half who desperately needs playing time for Kane who desperately needed a rest.
It's hilarious watching it all tumble down when he's not at our club.