IMO Ledley coming back would be a bad move.
It's not just the fitness issue, the lack of gametime over recent seasons but the fact that he's been a free agent throughout the whole of pre-season; it's not just us but every team who have decided not to pursue him. Either his wage demands are out of line with his bargaining position or the view within the game is he's shot at this level.
I'd rather go with Damour/Ralls. Younger, more potential.