Clark struck me as being a guy that thought it was important to make a great play every time - and often thought the long bomb was the ideal play. I tend to agree with green machine, putting him on the floor with guys he knows are top players might straighten him out. Might I say, with the coaches keeping on top of him as well.
He might even turn it around with the second unit if he's a regular member. Sporadic minutes subbing for Warrick, Dudley, Frye won't likely show anything positive. Playing regularly alongside Dragic, Childress and Dudley, I believe he'd do his best to hold up his end on defense and he's shown flashes of fair to middling D. If the second unit started tearing it up like they did last year, that could give him a whole new outlook on the game - who wouldn't love to be part of something like that.
Or not, of course...
Lawal is probably the surest bet to replace Lou in the second unit and have it continue on like last year.