If Trey can hit them...fine. I don't think a team should shoot half their shots behind the arc most generally. One of the things that happened "late" last year was the distance with four behind the arc was perhaps too much or took a bit longer to get the pass to a shooter coming from Zach. With four behind the arc each person is closer together than if only three were behind the arc and the defensive rotations were covering the arc better in some games. I don't think this would be an issue if Zach was equally effective in mid and high post as low post. When Zach is low post, his pass is now longer than if he was up higher, but he isn't equally effective between the low, mid and high post. Now that seems odd in that you can pass the ball quicker than you can run, but the doubling of the ball had Zach struggling at times and his passes were not clean and three defenders on the perimeter covered the four offensive players behind the arc for "some" of the later games. It was almost as though the three defenders were playing zone and just trying to defend the 3 ball. They were not in zone and probably not too worried Purdue would drive the ball on them and so the closeouts were hard.
Teams many times try to get a guy against a zone in the FT line area. The passing opportunities with the ball are best at that location since that is right in the middle of all the action. Like the low post it too keeps a defender honest and so now you hold two defenders for the low and mid/high post and if the defense sends a double or a dig, those three offensive players are more spread out and harder to recover for the defense. I know you and others are aware of this, but sometimes I think we overlook the importance of a player at the blocks and high post or short corner and high post against a zone. This is why "IF" Trey AND Zack are effective playing off each other inside, there will be spacing for the perimeter players since 3 are dividing the arc instead of 4. Course if Trey is a much better shooter behind the arc that will work as well. I just hold the opinion that too many threes and the players don't get mentally into the game as they are when they are more aggressive with the ball AND players going to the basket a bit....and I really like to get in bonus earlier AND THEN use it. Too many games I've seen where a team starts out hitting 3s and everything comes easy...until it doesn't and then the MO has changed and the good guys over the years struggle getting on the same page balancing finesse and aggression.