BUFFALO, N.Y. -- When 1-seed Michigan continues its men's NCAA tournament run, the round of 32 matchup will bring Wolverines coach Dusty May up against a close friend. May and ninth-seeded Saint Louis coach Josh Schertz, who first connected while coaching at different levels, are close enough to share practice film and playbooks, an uncommon level of trust built through years of exchanging ideas and learning from each other. "It's probably very unusual [to share practice footage]," May admitted during his news conference Friday. "There's a group of us that share -- and actually, he and I -- we're close enough where I don't even call him. I'll shoot his video guy, or he'll shoot my video guy a text and say, 'Can you send me last week's workouts?' We're toying with this, we're thinking about this concept. It might just spur an idea." A Sweet 16 appearance will be on the line when their teams meet Saturday (12:10 p.m. ET, CBS). Both teams topped 100 points in their first-round wins.…