TUF is a reality show first and foremost. they are looking for the mitriones, lebens, kimbos, whoever will pull interest and act like a dumbass on the show to keep ratings strong from week to week. good fights help ratings yes but that is only 10-15 minutes of every show. the other 90% is reality show bullshit that is based on personalities, drama, and being drunk dumbasses. the real aim for TUF is not to find a "next great fighter" and I am not sure that was ever its aim, it is primarily to market to and draw in regular joes that watch reality TV but don't watch UFC yet and to push the UFC brand through a venue other than PPV.