The Kansas City Royals’ first-time head of baseball operations, J.J. Picollo, has selected a first-time manager to lead the ballclub through the next stage of its rebuilding process. The Royals announced early Sunday evening that they are hiring Tampa Bay Rays bench coach Matt Quatraro as their next skipper. Quatraro, 48, is the first key hire of Picollo’s tenure as executive vice president and general manager. Quatraro was the assistant hitting coach in Cleveland from 2014-17. He became the Rays’ third-base coach in 2018. “I’m grateful to Mr. (John) Sherman and the ownership group, J.J. and t…