Albert Haynesworth has to be up there. At least Watson has put forth effort when on the field and has had a couple good games. There's also still 3 more years for him to prove that the contract is not as terrible as it currently seems.
The problem is that even if he plays well, the cap hit after this season is massive. 63 mil a year for a single player insane. They're going to have to work magic over the next few years.