The NBA career of Roger Mason Jr. is a testament to grit and sacrifice and perseverance, all the good stuff, the intangibles, that personnel gurus routinely miss going into the draft each June. Mason is looking to impart some of that stick-to-it stuff to the elementary students of the E.L. Haynes Public Charter School on Georgia Avenue in Northwest Washington. More about that later. But first how Mason beat an omission that was not necessarily the fault of the NBA evaluators. How do you mea...