Gotta think that this means they think they may not get DeMarcus Cousins or don't like him. Greg Monroe is a very good passer and can play out of the paint. Cousins is most effective in the low block, much like Dalambert.
Unless of course the Kings try to stick with Jason Thompson and Donte Greene at the PF spot, which, if I remember right, they weren't all that thrilled with at the end of the season and still try to draft Cousins as their center of the future after Dalambert expires.