Sure it isn't hard to solve when you can throw out half baked ideas with no recourse for being wrong.
Both your scenarios assume success. If there isn't success, which is the most likely outcome, we are in the same position as we are now, because your pipe dream of no buyouts is just that. That is just not reality.
The last time around we tried the up and coming rout going after Bryce Drew. Unfortunately we were outbid by Vandy who reportedly gave him a top 15 contract in terms of average annual pay. Up and coming coaches are not the cheap route that people think. More realistically, the cheap option isn't an up and coming coach. It's an relatively inexperienced low tier program coach who we would hope we are getting before they go on to become one of those up and coming coaches. That's not something that anyone should look forward to. Oh, and for what it's worth, Drew was fired after 3 years and a winless conference record after year 3, so that path is both expensive and not a sure fire upgrade.
The fact is, there isn't a good solution when you don't have money. And there is no reason to make a move right now unless we have a for sure upgrade lined up. We had to make a move with gregory because he was losing the entire team and bringing in a 2 man class. We've not reached that point with Pastner where keeping him is going to do more long term damage to the program. If he completely whiffs on the next recruiting class maybe, but we aren't there yet. Otherwise, making a move just to make a move changes nothing.
What worked was the way Cremins recruited and the why was because it was before the era of players leaving early consistently. He could bring in the top players, and reliably get 3 years out of them. Unfortunately things changed, and there is a reason why Cremins only made 1 NCAAT in his last 7 years here. Hell, compare his last 4 years here to Pastner's 4 years and they'll probably be similar.