Valentine is a 62-year old man. He was out of an MLB job for a decade. He had his fill of the TV gig, presumably. Now he's got a 2 year contract managing one of the big shot teams. He's probably grateful to the brass for hiring him. Whether they told him so or he realized it himself, there came a point when it occurred to him that blowing his stack on a regular basis might not be such a great idea for the future of his career as a manager. So yeah, he's just another docile puppy with a paycheck now.