I think your post does him injustice.
I would love to see stats of the players who have run the most in Serie A this season - I wouldn't be surprised if Brozovic is right up there. He works crazy hard every game, without any rest or rotation for club or country. I am surprised he hasn't broken down yet. Yes, he makes the odd mistake now and then, and has bad games specially near the end of a packed schedule (7 games in 21 days kinda stuff). But what else do you expect? He is human, and ideally we shouldn't be running him into the ground like this.
Brozovic has been an amazing engine for Inter this season, one of the main reasons why we are still on top of the table in Serie A. I say, thank God for Bro. Still our most important midfielder, I wouldn't even think about selling him.