You’re right on the money about Calipari doing the same thing. What Calipari and Mingione have in common, and the reason they had to go all in on the portal, is a couple bad years of poor recruiting. This is a baseball discussion so I won’t get into my recruiting issues with Calipari here. Bottom line is if you can’t recruit good high school talent, you have to go all in on the portal.
I think this is correct to a degree, but in college basketball the best players do not have to stay 3 years (or until 21) like they do in baseball. If you recruit a freshman in baseball then you're guaranteed 2 to 4 years out of them. IF a guy is a stud as a freshman, he can't just go pro in baseball. He still has to stay at least 1 more year, if not 2 (ala Rocker). A JUCO that comes in and is a stud typically could leave immediately. So, to me, there is a big incentive to get the freshmen because they can conceivably contribute more.
Contrast that to basketball and the best college players are typically only staying a year. A stud freshmen is gone and a stud transfer is gone. So, if you're only going to get 1 year regardless, you might as well go with the experience and the known commodity rather than the freshman whose game might not translate as well. In college baseball you can go with the known commodity, but doing so means you're possibly missing out on a guy that you could have for 3 years.