I'd bet it's not a lot more than saying hi in the hallway. While Bo is learning from Tom, you can bet he's running the ship HIS way. And Tom is smart enough to know that micro-managing Bo is an easy recipe to disaster. Tom is no puppet master, so any concerns about his heavy-handed influence are pretty far off base I suspect.
While football is the cash cow of any university, Tom now has 20 other teams to worry about, plus sundry other duties as an AD. I'm sure he spends more time on football-related issues than any other specific sport, but he's not putting undue influence in there.