When Jimmy got to Michigan for his first Fall Camp, he was quoted as saying this:
"Just to let you know, we're going into a submarine (Friday), and you won't see us for a while," Harbaugh declared Thursday afternoon on the eve of Michigan's first 2015 fall camp practice. "You won't hear from us. You won't see us. We'll be working. "We'll be in a bunker ... until we decide we're not."
He changed his stance on this a couple of times, letting reporters watch practice, having position coaches doing press conferences, etc. Fall Camp is still early on but there is little to no information leaking from Fall Camp.