The tweets show that he genuinely doesn’t want to change things. He's no MLSE lackey, he could have gone to the Impact or other clubs, so I believe what he's quoted as saying.
He already knows Vanney from RSL, so I'm sure he already has his opinion of him. If he thinks Vanney can continue to grow as a coach, I think we should defer to his judgement... after all RSL were a great MLS 2.0 club even without the bucks.