Willie Jackson is 6'6 and is leading the MAC in rebounding at 12.4 rebounds per game, which last I checked also had him 3rd in the nation. Mballa, who killed us on the glass, is 6'7.
Height isn't the issue. Riak, at 6'10, had 3 inches of height on Mballa. Buffalo didn't out rebound us because they're taller, they're not. They out rebounded us because they did a better job at getting into position and boxing out. Our rebounding woes isn't a height issue. It's a technique and effort issue.