Additionally, Collison was gone next year. Having committed to George Hill, there's no way they were going to match any offer sheets Collison got in free agency, so might as well try to get something now. I'd have thought they could get more than Mahnini, but perhaps they see something in him they like, and with the money given to unproven centers this offseason, it's difficult to say that he'll be overpaid for the next four years.