Would be an even greater tournament if the administration didn't actually participate in the tournament. Because no matter if you actually believe that Guru was "cheating", or if you just removed him to make sure only your chosen friends can make the finals, it certainly does look sketchy to remove a participant on the base of "cheating" without providing proper evidence.
So maybe you should think about reorganizing your admin team. Just to make sure noone can claim there's self-interest in admin actions.