I agree on the Matt Hughes comment and I am not saying if your a wrestler your going to do well in the UFC on those skills alone.
GSP wrestles with Team Canada to start out his training for each fight and those wrestling skills are paying off. I think now that the olympics are gone for our future wrestlers you will see them training a lot in the off season with their boxing skills etc and will be very dangerous if they get a head start because the ones that are doing well in the UFC just started out of college