Oklahoma City were able to make this trade because they had roughly $9 million's worth of cap room.
As documented here, Oklahoma City had about as much cap room as anyone this summer, and could have bid on a number of quality players that filled a need (including
Utah's very own
Paul Millsap, whose new contract is ironically the reason for the need to salary dump in the first place.) They didn't do this, though, instead choosing to sign two of the worst players to have ever had ten or more year careers;
Kevin Ollie and
Ryan Bowen. Reasons like this are partly why; they maintain their cap flexibility for next summer, while using their untouched space to acquire talent during the season. Just like
Memphis did in 2008/09. But more on that later.
It's interesting that they moved so early, too. With so many teams destined to be tax payers this year (14, at last count), you would think it'd be inevitable that, come trade deadline time, teams would be bending over in front of the Thunder, offering up penetration or whatever Sam Presti wanted if it meant that they could use some of the Thunder's cap space to save some of their excess salary. Yet instead of waiting for the deadline, Presti has acted two months early, and used it up on a projected backup. Maybe that was the best deal they can get. Maybe they have further plans for Harpring's expiring, and needed to get it while they still could. But it seems unlikely that Maynor and Harpring would have been the best available assets had they waited it out.
I guess they just really like Maynor. Perhaps a little too much so. We'll see how this works out come deadline day.