Does Dana just have a 'gut feeling' about these guys with no experience? Nah, they'll just stir shit up in the house.
But just how entertaining would TUF be if the house was full of serious, responsible, dedicated adult athletes who recognize the opportunity before them?
Unfortunately Dana is put in the unenviable position of having to generate both "Good Fighters" and "Good Rateings". And when that's the case one or the other is always going to suffer. So he needs to find a balance. Which at least seems to be having more good fighters with the occasional idiot to attract the "not so educated" viewers.
There always has to be at leaste one.