I've been talking about him for quite a while now. I did hear that Iowa was his "dream job"...but I don't know the context of that, if there's even a quote about it... He didn't attend Iowa. He played JUCO and then at NW Missouri State. So, not to dig too deep in to the psychology here... I would think getting an offer from Indiana, might make the Iowa job a little less "dreamy".
But if you "miss out" on guys like Stevens, Pearl, Oats...whoever else that might be more "proven"...then taking a shot on a guy like McCollum is the route to take. There are no guarantees, outside some of the higher profile guys I mentioned, that the next coach will hit. But, like I've said a bunch of times now, I think the odds are pretty good, with a decent amount of them...that they'll elevate the program, and be pretty darn good.
To me, McCollum is just as good, if not better, than guys like DeVries, May, Jans, Golden, etc... They all started at lower levels too, and ascended up the ladder, to where they have had some P4 successes. Where McCollum separates himself...he DESTROYED his peers at the beginning stages of his career. None of the coaches, even the higher profile ones, none of them had that level of dominance, at any level of their coaching...to what McCollum had at NWM. And when you read up on him, and his style and approach, you can start to see how and why it happened. And that seems like something that is VERY repeatable, and very translatable up to higher levels.