Could the most cost-efficient center in the NBA be playing in Oklahoma City? That might very well be what has quietly taken shape. When the Thunder inked Kendrick Perkins to a four-year, $32 million extension days after acquiring him from Boston in a blockbuster trade that sent Jeff Green among others east, some observers scoffed. They snickered louder when Perkins finally took the court and gave everything he had but struggled while playing on bad wheels. Look who's laughing now. After a whirlwind free agency period finally came to some sort of calm with Sunday's start to the regular season, the Thunder, which didn't make a single splash, came out as the big winners. And it's all thanks to the once-ridiculed extension for Perkins being in place before the frenzy. The Thunder has Perkins locked up for a relatively cheap $8 million per year over the next four seasons. His peers commanded nearly two times that amount this offseason. Denver broke the bank by giving Nene $65 million over five years. New York backed in a Brinks truck to Tyson Chandler's home and splurged $56 million over four years for his services. Memphis gave Marc Gasol roughly $58 million over four years to continue anchoring its frontcourt alongside Zach Randolph.