Umm including only Prohm and Otzelberger recruits...
Darrell Bowie (not a Big 12 starter but fine in a bench/rotation role)
Donovan Jackson (excellent shooter, would love to have him next season)
Marial Shayok (one of the best transfers of the Transfer U era)
Michael Jacobson (again, would love to have him coming in next year)
Rasir Bolton (wasn't a culture fit with TJ, but still an excellent player)
Jalen Coleman-Lands (another guy I'd love to have coming in next year)
Blake Hinson (didn't play for Iowa State, but he tore it up on offense at Pitt)
Iz Brockington (first-team all-Big 12, an excellent two-way college SG)
Gabe Kalscheur (similar to Brockington only with more emphasis on defense)
Tre King III (flashed at times this past season, hopefully will be very good next year)
Jaz Kunc (sort of a "Mario" player... few incredible strengths but no real weaknesses)
Caleb Grill (obviously it ended badly but he was playing well there for 1.5 seasons)
Jaren Holmes (HM all-Big 12, would be very happy to have him back)
Osun Osunniyi (HM all-Big, again would be very happy to have him back)
Plenty of guys who were quality or even excellent Big 12 players up there.
Give me a lineup with 6-7 of any of them with a reasonable distribution across guards/forward and you've made yourself an NCAA tournament team in pretty much every instance.