"One of my main concerns was to start training camp on time," said NBA draft 1982's No. 1, James Worthy, as he prepared to leave Gastonia, N.C., for Los Angeles today to formalize a contract agreement with his first professional employer, the Lakers. The 6-foot-9 forward, who led North Carolina to the NCAA championship and forwent his final UNC year, engaged D.C.-based ProServ and, last week, worked out terms with Lakers owner Jerry Buss.

No word on Worthy's prospective pay. But when camp opens Friday, he may not get to meet Laker supersub/free agent Bob McAdoo, another ex-Tar Heel, holding out for something like $650,000. . . Terry Cummings, the De Paul forward drafted by San Diego immediately after L.A. took Worthy, is so dismayed over negotiations with Don Sterling's Clippers he reportedly headed for Memphis to discuss joining Athletes In Action. Press conference set there Thursday, maybe for Cummings to declare for the evangelical team instead of NBA '82-83 . . . Traded: NBA's champion shot blocker, center George Johnson. From San Antonio, where recent advent of Artis Gilmore made him an expendable Spur, to Atlanta for Hawks' draftee Jim Johnstone, the Wake Forest center, and two second-round picks.