Jim Harbaugh spent nine seasons in Ann Arbor coaching at Michigan. He rebuilt the Wolverines into a national powerhouse that compiled 40 wins over the past three years — but decided to leave to take the head coaching position for the Los Angeles Chargers. While he’s looking at what’s ahead, Harbaugh took a moment to reflect on what he left behind in Ann Arbor, and why he decided to take the Chargers job on top of the college football world. “Yeah, it was. I love these guys. All the players there, all the other guys we recruited,” Harbaugh said during a recent appearance on Pardon My Take. “The…