 Three days later, when the Red Sox tried to send Schlesinger to the minor leagues, they had to pass him through waivers and he was claimed by the Kansas City Athletics.Thus began the "yo-yo" nature of his career.After parts of two seasons in the Athletics' farm system, the Red Sox reacquired Schlesinger in 1966 and he played the entire 1967 campaign with the Double-A Pittsfield Red Sox, belting 21 home runs.