I've watched ISU every game and watch a lot of other conferences' games too. Example: yesterday Nebr was running basically the same spread offense. (And NO, this is not an 'about Hoiberg' post.) A pt. guard or another penetrated, while 4 guys stood on perimeter spacing the floor ...or they drove to the hoop on a close out then dished. And repeated. How did a team who has been beaten by some low mid majors and Creighton by over 20, beat Purdue? Well, because they made SHOTS... 11 threes. Purdue had less turnovers, more shots, and out rebounded them. But Nebr finally made shots. Watching a few of their earlier games made me believe they were really bad shooters. Plus, they did play aggressive tough defense.
I do feel our lack of ability to make shots is a much bigger factor than what offense we're running. You can find plenty of other teams as examples that pretty much do the same thing offensively as we do. Perhaps there is more POST feeding however. It's like I almost wish Bolton was the point guard (as he plays best going to the hoop vs. those ugly 3's he takes) and Tyrese was the '4' man. He shoots, would be a great mismatch against another teams front court, rebounds well, and still could penetrate to the hoop or have plays run thru him. BUT..I realize that is impossible tho, as Tyrese is our best passer, best pick and roll guy, and will play that position in the NBA.
Just think some fans are being over critical of Prohm as far as the 'what we run' aspect. If we could make shots and rebound, a lot of things would magically look differently. But you have to work with what you have. Lets hope there are more gritty Seton Hall defensive performances and more Alabama offensive performances in the near future.