Haye doesn't have the chin.

He could have all the guts in the world but he doesn't have the chin.

Against Wlad aroudn round 5, Wlad landed a good right hand that really stung and you could see Haye back off. Booth has admitted this. Both he and his fighter knew if they tried to win he would get KO'd because his chin wouldn't have held up. So Haye backed off, gave away the fight, and picked very few spots to try to attack.