Interesting question.... My guess would be no they don't.
If 2 family members are about to Square off against one another.... whether its as coaches, or players, or very rarely a coach on one team facing his son on a different team...... You know that leading up to that game and/or after that game is over.
Half of what the media is going to wanna talk about is 2 family members going face to face.
Remember the super bowl where Jim (then with the 49ers) & John (of the Ravens) Harbaugh were facing off? Literally 95% of the storylines leading up to that super bowl was Jim vs John, Brother vs Brother... etc. And had it not been for the power going out in that game.... and all the jokes & memes that followed from that incident.... every story after the super bowl woulda been about Jim vs John regardless of who won, rather than the game itself.
I'm curious as to how many times Danny & Bobby Hurley have faced off against 1 another.... 2 very well know brothers in college coaching.
I know they've faced off a couple times.... but I don't think they go out of their way to do it.