If we assume that he can be calmed down by the Pats organization the way other loudmouth jerks are, I'd say LdT. RB is the secondmost important position on the field after QB.
Besides, can you imagine LdT and Randy Moss on the same team? Opponents would ALWAYS have to respect the halfback option pass then.
Another interesting choice would be Calvin Johnson. Just how do you stop the Pats with Johnson and Moss both on the field? Ditto Antonio Gates.
Bailey and Polamalu are good calls too. Interestingly, while I'd like to name an ILB, I'm not coming up with anybody. Urlacher is closest.