HOUSTON — A day before the start of training camp last summer, Washington offensive coordinator Ryan Grubb had an idea. A vision, as he called it. But before he would present this vision to his players, Grubb first wanted to share it with someone he trusted: former UW coach Chris Petersen. To Grubb, Petersen is a mentor — “just an absolute stud,” as Grubb called him — and he wanted his input. “I was telling him, ‘Man, I’m really leaning toward telling the guys: ‘Let’s go for a national championship. That’s what’s possible,’ ” Grubb said. Petersen wasn’t convinced. “He was like, ‘Ah, I don’t kn…
