RJ is simply too small to defend the bigger guards in this league from getting to the rim, or to defend the perimeter in the zone.
Until ORU gets the kind of taller, stronger guards I've been pleading for ever since returning from the Southland (like Rod Pearson, Adam Liberty, Obi Emegano, or Korey Bilbury), you're going to see the same kind of results defensively as these last two games when playing the better league schools.