This looks like a good trade for Sacramento. casspi had a very good first half of his rookie year and has shown very little thereafter. Hickson, while not an All-Star talent, has shown progress each year and his Per36 numbers took a decent jump last year, especially in the rebounding area.
A Sactown frontcourt trio of Cousins, Hickson and Thompson doesn't WOW!!! me now, but with good coaching and development, in a few years that could be a pretty decent frontcourt.
I don't get Cleveland trading Hickson and using either Jamison or Thompson in his place or what they see in Casspi. Best thing they may get out of this is that draft pick.