In case Gay is not going to dress up for this game I believe that Derrick Williams should be the starter, and my reason is pretty much plain and simple, Casspi is obviously looking better than D-Will thus far, but if Casspi will start the second group will be helpless, no one will be able to make the extra pass and give some spirit and enthusiasm.
I believe that if D-Will is going to start nothing major will happen to our starting unit, most balls will simply go to Cousins, Ben and of course Collison, D-Will will probably be the last option and it's OK.
Casspi should come of the bench but obviously play more minutes than D-Will, I believe Casspi should help the second unit as much as he can so our second unit will be pretty much equal to our opponent second unit, and then coach Malone will incorporate him in the starting unit rotation instead of D-Will.
Casspi might start tonight unless Gay is playing of course, but if he will, it might mean that the Kings second unit won't be able to compete with the Pelicans second unit.