Seems like the Gophers in the 80's and 90's occasionally got a stud from Michigan. Burton, Tucker, Lenard were all from Michigan, probably others that I can't think of. Not sure who was the connection was.
I agree, the truth is a mixture. I don't know if there was any evidence or not, but I find it very hard to believe that someone in Roy's standing at UNC, that he didn't know what was going on. Just like Clem knew what was going on at Minnesota.
Al had an up and down Gopher career, but I was always impressed with him. I was around the team at a couple of out of town holiday tournaments during his time at the U. He always went out of his way to talk to the fans and thanking them for traveling to watch the Gophers.