The National Basketball Association will hold its annual meeting for coaches, general managers, team physicians, public relations directors and marketing directoos today and tomorrow at the Mayflower Hotel.

The Board of Governors will meet June 19-22 at Amelia Island Plantation, Fla.

Whenever NBA general managers and coaches get together, the talk is usually about trades. The next couple of days should be no exception.

The Boston Celtics, who last week signed college player of the year Larry Bird to a five-year contract for $650,000 annually, had been trying to trade forward Bob McAdoo and may still be, although new Coach Bill Fitch likes him.

The 27-year-old, 6-10 McAdoo averaged 20.6 points in 20 games for Boston last season and 26.9 in 40 games for the knicks. He was the NBA scoring champion in 1974, '75 and '76 and has a 27.5 career average.

A number of teams are hopeful of improving their position in the draft, which is two weeks away. The Los Angeles Lakers have the first pick and will select Earvin (Magic) Johnson of Michigan State, who has already agreed to contract terms.

The Bullets will pick 22nd and last in the first round. The NBA champion Seattle SuperSonics will have the sixth and seventh picks overall.