My sense is this is more he's too trusting. He gave Ali carte blanche under the mantra if you hire good people, you let them do their job. He's done the same for Bob.
His likely position is that if he has the right people, they won't want him constantly looking over their shoulders.
And in this case, because of BOb's track record at LA and his own background in U.S. soccer, he is clearly not seeing the whole picture.