Aside from the goal, I thought he was ok today. Some good moments mixed with some bad. Horrible shooting though, and yet he doesn't do it enough in my opinion.
His kind(caroll,dzeko,huntelaar) will die out soon and deservedly
Mandzukic has strength, fantastic aerial ability, messes with CBs mentally, mobility, chases down loose balls, and respectable pace. He is the ideal box striker/target man.
He is not suited for Allegri's game plan and his lack of goals as a result of that also took his confidence away. While I blame Allegri for failing to get anything out of him, I'd still choose allegri over llorente if one of them has to go. If he was still 26 or 27 then that would have been a different story.