[AdamArmand]

The problem is with any of these returning housemates is that NOW they are perfectly aware of how the outside perceives them. Even worse, they may now have managers who are 'coaching' them on how to act should they win a place back in the House. So we should prepare for some very contrived goings on. The people we knew before are long gone.

They are playing their parts, to the max. That is why this is ultimately a mistake.