Getty Phoenix Suns newly promoted general manager Brian Gregory has a work cut out for him. T he Phoenix Suns are looking to accomplish two things this offseason: trade Kevin Durant and find a starting center. While they are busy surveying the trade landscape for Durant, the Suns are also multitasking in doing their due diligence on centers who are potentially available this summer. According to NBA insider Jake Fischer, Boston Celtics ‘ Kristaps Porziņģis and Indiana Pacers ‘ Myles Turner are