In my experience coaches like that, once they get some years and money under their belt are never as hungry anymore. And in today's game. If you are not a relentless recruiter or you are someone like Saban, or Jimbo that has a history of success and achievements to recruit itself. Then you are going to play second fiddle to every quality commit. In my years of watching B. Kelly that was one of my biggest complaints with him. Once he got a contract extension or something like that. He would head for the golf course and put it on the coaching staff to put in the time and miles in getting recruits and then reach out to him to close the deal and show up for the photo op.
Whereas even as much as I think Harbaugh is snake oil, the guy is a heck of a recruiter. And in college if you want to play at the top levels you have to be.