Let me amend that.  A good D3 can certainly not beat ALL NAIA's.  The best D3 teams in the country may well beat every NAIA but I'm not so sure. 

Bearkat - I do not agree with your assesment of NAIA.  A good D3 team cannot beat most NAIA schools.  For instance, LSUS would be a very tough game for anyone in our conference and they have can hardly get past the sweet 16.

Also, HBU did not BEAT UP ON the Red River Conference.  Undoubtedly they were a perenniel contender, but Texas Wesleyan just recently won the National Championship and several other teams give them fits every time they play.