One of the wackier NBA regular seasons in history is over, for better or worse, and the two-month playoff run is set to begin. With the first round upon us, the minds at Ball Don't Lie decided to preview each series. Here's our look at the No. 3 Oklahoma City Thunder and No. 6 Dallas Mavericks. How They Got Here • Oklahoma City: The Thunder's season started with a mixture of hope and pressure thanks to the introduction of new head coach Billy Donovan and the return of Kevin Durant from foot injuries that limited him throughout the 2014-15 season. With Durant set to become an unrestricted free agent this forthcoming offseason, the conventional wisdom was that the Thunder needed to prove themselves as a tactically diverse team with the ability to beat the likes of the Warriors and Spurs in many different ways. It didn't work out as planned, although that wasn't necessarily a problem for OKC. Donovan's Thunder look a lot like Scott Brooks's Thunder — the offense relies heavily on Durant and Russell Westbrook, the role players rarely step outside of their prescribed roles, and the late-game offense finds the stars looking to score in isolation. As with the Brooks Thunder,...