[MatthewS]

BB shouldn't be attempting to change how the game plays out at all though.

If the ratings suck, fire the person responsible for picking who got into the house in the first place, but don't step in and start playing favourites and altering the natural course. That's not really the point of Big Brother. Might as well give each of the houstmates a script to read with just enough drama to keep us watching, but not enough to get ofcom pissy.