The Thunder returns nearly its entire roster from last season. It didn't add a single player in free agency. Three of its core players -- Kevin Durant, Russell Westbrook and Nick Collison -- have been in Oklahoma City since the franchise's inaugural season.

But in many ways next year's version of the Thunder feels like a completely new version of the Thunder. Last year, much of the roster had its season stuttered by injuries. Kevin Durant has still yet to play a professional game with Enes Kanter, D.J. Augustin or Kyle Singler. He's only played five with Mitch McGary.

And, of course, Billy Donovan's arrival changes the coaching equation. He brings a new style, system and staff.