I think Ben plays with the starters because he is a good defensive guard and we don't need his scoring with Gay and Cuz in there. Nik gives offense to the bench. So I don't think much will change. Both need to start hitting some shots though.
Also, a radical idea: I'd really like the Kings to play as if the guards could make shots, e.g. passing it out of the paint to guards. It would be great practice for the Kings guards, at the cost of wins. But so what? If we win less, we get a higher draft pick anyway. If we do that, in the long run, we would 1) get familiar with a passing offense, and 2) the shooters get more experience, and 3) a chance at a higher draft pick (the small -- yet bitter -- cherry on top).