Steve Boros was named manager of the San Diego Padres yesterday, one day after Dick Williams quit the job.

Boros, 49, who has been minor league coordinator of instruction for the Padres, last managed in Oakland, where he was fired 44 games into the 1984 season. The A's finished fourth in the American League West in 1983 with a 74-88 record.

Terms of the agreement, including the length of Boros' contract, were not announced.

The selection of Boros to succeed Williams was speculated about last December when it appeared the Padres would buy out the last year of Williams' contract. The buyout, initiated by Ballard Smith, the team president, and Jack McKeon, the general manager, because of displeasure with Williams' fiery managing style, was blocked by owner Joan Kroc.

Boros said his coaches will be: Deacon Jones, hitting instructor; Galen Cisco, pitching coach; Jack Krol, third base coach; Harry Dunlop, bench coach, and Sandy Alomar, first base coach. Alomar is new to the staff, having been brought up from a minor league position. Dunlop, who had been demoted to the minors, also returns.

"This club's a solid club," Boros said of the 1984 National League champions. "I think there were players who did not perform as well as they could last year. I don't see that we have to make drastic changes in order for this club to compete for the National League West. The talent is there."

He mentioned several times that he will try to increase the Padres' speed . . .

Two Boston disc jockeys, hearing that Wade Boggs lost his arbitration case and will receive only $1.35 million for the 1986 season instead of the $1.85 he was requesting from the Boston Red Sox, are collecting cans and bottles to "help Wade make ends meet."

If Boggs declines the help, officials of station WROR said money collected for redeeming the cans and bottles at 5 cents apiece will go to the Fund for the Homeless . . .

New York Mets pitcher Dwight Gooden, the unanimous winner of the National League Cy Young Award, has been voted Gordon's Gin Black Athlete of the Year for 1985.

The 21-year-old right-hander received 237 points in the final balloting by a panel of black sportswriters and broadcasters. The other finalists were basketball star Kareem Abdul-Jabbar of the Los Angeles Lakers, track star Valerie Brisco-Hooks and Chicago Bears rookie defensive lineman William (The Refrigerator) Perry. Gooden will receive $25,000 cash and a hand-sculptured bronze trophy.