I'm a big fan of the stretch 4, but there are multiple ways to construct an effective roster. The main thing that stretch 4 gives you is the ability to spread the floor with perimeter shooters. Mason isn't the prototypical stretch 4, but he doesn't necessarily have to a dynamic playmaker like Rob or Vince. Him playing the 4 is a much different scenario than trying to put Trevion there, for example. You have enough of an outside shooting threat to open up the paint and get the defense in rotations (35% = above team average). Plus, you get the grit, floor burns, rebounding, etc. Probably a similar mix with Caleb at the 4. The other key to this is having capable shooters at the 1-3 positions, and a dynamic creator guard, something we didn't always have with those teams Rob and Vince were on. I guess what I am saying is you can end up with the same skills on the court but packaged differently.