I think Brock wanted to lose,or his heart wasn't really into winning, but didn't want to make it obvious. he tried only a couple really shitty take downs, they knew the game plan going in he could have had overeem on the deck right away. even when he started the fight he just kinda slowly moved to the middle he usually charges like a mad man. I honestly think hes done probably due to illness, there's too much money on the table to just walk away and retire.
It would make me lose respect for him is if he goes back to the wwf.