I think higuain just need to be rotated with mandzukic as a CF.
Everytime he gets a little rest, then returns firing on all cilinders.
He is not retiring material yet, but its a fact that we overuse him and burn him. He needs to be fresh from time to time
Also, having mandzukic behind him, could even improve the concentration of boths in a healthy competition. We all know higuain will be a starter, but having a little competitive stress could help him to focus.