Izzo and Painter might be the last two coaches building nearly exclusively through recruiting high school players.
I think there might be other coaches who want to, but you have to win quickly, so you need a quick infusion of portal talent, and what good recruits are signing up when you are putting a bunch of older kids adults in front of them. So then your first year, win or lose, you lose a decent number of those guys. If you won, you can't get worse. If your didn't, you can't lose again. The coaches who get it right will be the best teams. The coaches who don't will flame out. I think MSU and Purdue are well situated to always be very good. The teams they finish behind will change year to year, but I think they will always be behind whichever team did get it right that year. That might mean teams who lean into the portal heaviliy; Auburn, Michigan, Indiana, etc... will be great one year, and in the NIT the next. So it's a matter of whether you want to be consistently very good, or shoot for great, and maybe be Auburn or Kentucky or Kansas State this year if you miss
MSU is always a tough out in the tourney. Izzo's teams always get better as the season goes along, which is a testament to his coaching ability. Purdue is always a solid squad, even though my uncle was ranting that Painter should have gotten fired the year you guys had a 7-4 center and never threw it to him, settling for 3's, going cold and going home.
K-State's coach only had a team that improved along the way in his very first year. All 3 later versions finished with a fizzle, getting worse toward the end of the season instead of improving. Which is also a testament to his coaching. Hell, they started out pretty hot this year, and really had a chance to beat Nebraska--losing by 1 on a drive to the bucket. It absolutely fell off the cliff after that loss, the team flat out stopped playing with any effort, and boom, we're arguing over an $18.7 M buyout.
Our new coach was great at identifying high school talent, but had no money to keep anybody, and was a yearly victim of the portal. However, he re-loaded and won 20 games every damn year. That's what we need, a "program," and to keep guys he finds or maybe add a few when the occasion presents itself.
K-State has been to 3 Elite-8's with 3 different coaches since Iowa and St. Johns even made the Sweet 16, I was a bit surprised to learn the other day.