Mast was the best player on a team that finished as a top 65 KenPom defense the past 2 years. A shot blocker would be nice, but defense is more than just blocking shots--Mast has a significantly higher rebounding rate than Rebraca ever had at ND or here. In fact his rebounding rate is higher than Dickinson's.Another positionless basketball player, great, while other Big Ten teams find true centers Fran recruits slow white forwards to play the position....enough of this players offensive video, where is a video showing his defensive prowess especially against taller centers. Fran can sure pick'em.
The only player who Iowa is currently in on that's a better defender than Mast is Minor--and Minor is a much, much, much worse offensive player and rebounder than Mast.
There also seems to be this perception that there's just a bunch of defensive centers available in the portal that Iowa is not in on--when I go into EvanMiya and filter for 6'8+ players and sort by block % and some other defensive numbers the two names that always comes up are Shedrick (who Iowa's been in contact with) and Minor (who Iowa's getting a visit from). There's another kid from Colgate who I just looked up on Twitter and there's 0 reporting on who has contacted him. And then you get into guys who no high majors are showing interest in. It's not some buffet line of bigs to choose from that some think. Hell Even Brauns is in the top 10 of most defensive numbers I look at when I filter for 6'8+ guys.