You would never put Haas on the baseline in a 1-3-1, because that would require him to defend corner to corner. Instead, I'd had him defend the post in the middle of the zone. (I like the 1-3-1, but not with Purdue's personel.)
Just for kicks, if Purdue had to play 1-3-1, what would be the best line-up? Possibly CE out top, DM, CS, VE in the middle, and BS on the back baseline?