There's often discussion on here of what the best jobs in each division are, but I thought I'd go to the opposite end of the spectrum. Which schools do folks think would be the most difficult to win national titles at in each division (and why, if you'd care to share). I'm looking for the ultimate hat-trick of national titles that would forever leave a head coach immortalized if they were able to pull it off.
For my picks, I don't have enough D1 knowledge to offer an educated guess, but I'd speculate the hardest job might be a low baseline prestige position in the heart of ACC or SEC country where there are also plenty of higher-tier mid major schools around (I realize that as the game stands right now, pretty much any non-Big 6 position could probably be categorized as "the field" and considered here, but if anyone wants to offer up a specific school, lets have it).
For D2, I think I'd go with one of the Puerto Rico schools over the Alaska or the Hawaii programs largely because the latter two can at least FSS their in-state talent and get a rough idea of what they're getting while PR doesn't get that luxury.
For D3, I'm definitely offering Maine-Presque Isle. I don't think another school in the division features the same challenge. You've got Canada on two sides, an ocean on a third and miles of nothing to the south before you actually start finding recruits. Even in-state folks are 70+ miles away and there's 100+ New England schools that will have a distance advantage on you if you try to battle for the good players in neighboring states.