DMo Fan Boy makes a good point here, but I would add to this that, if the player is versatile enough to guard the 1 as well, then they could also get some backup 1 minutes playing alongside Harden.
If we get a lockdown defender, he still needs to be able to knock down the open shot like Bruce Bowen did. The Brewers and Tony Allen can't do that consistently. Role players who play D and can hit the open shot are not that easy to come by, which is why I didn't want to lose Patrick Patterson.
