I wouldn't let the past dictate what you do.
Collins, Phillips, or Goldman certainly make sense, but I think the biggest upgrade that could be made is at OT assuming one of Fisher, Clemmings, or Smith are there.
Mills was the worst OT in the league last year. Rolle is still a starter in this league and Mundy is really underrated here. Need DL help but I can't really say that McDonald/Ratliff/Ego or Houston, or some combo of that would be all that bad.