By Chris Rosvoglou Last weekend, the college football world learned that Josh Gattis was leaving Michigan for Miami. It was a move that sparked a ton of questions about his time in Ann Arbor. During his introductory press conference this week, Gattis admit that it was hard to leave Michigan behind. “Obviously, it was a very emotional week — as far as leaving,” Gattis told reporters. “Any time you go through change, it’s always hard because I felt like I didn’t leave players behind — I feel like I left friends behind. I’m a person that’s built on relationships. And coaches that have worked for …