I would be shocked if Haarms played one minute this season. We have a team (emphasis: TEAM) that has played together for most of the year. I doubt he could be effective in a 4 weeks of practice. He won't understand the defensive switches or the offensive plays. He would be a liability compared to even Eifert. We have a significant upclass group of players that give us an advantage.
If needed, Matt could go with VE at 6'8", Cline at 6'6", Mathias at 6'5" along with PJT and C-Boggie. Let's face it, we have been beaten by teams with not much more size. Rebounding is a matter of position and not height. Where we lose ground with being smaller is on the offensive end. Going small upends the game planning our opponents do against our big front line, and scrambles the game.