New regime, all right, in Oakland, where Steve Boros -- "scholarly Steve," the wire stories say, in deference to his degree in literature from Michigan -- was introduced as A's manager yesterday by Roy Eisenhardt, team president. "Not necessarily because he was the best of the five (seriously considered)," said Eisenhardt, "but because we felt he was the right person to lead this club at this time and for this community."

"At this time" means in the wake of Billy Martin, and says Boros, who at 45 has served in almost every capacity up to his new one since playing third base for Detroit and Cincinnati in the early 1960s: "I have my own standards . . . Baiting umpires and yelling at the players aren't among them . . . That's not to say I won't be upset . . . but I believe there is a different way to handle both situations" . . .

As for Martin's yet unconfirmed return as New York Yankees manager, the N.Y. Daily News pads its report with "informed sources outside the Yankee organization" pegging his prospective pay at $500,000 a year. So, what could an Earl Weaver command, sometime down the road, from George Steinbrenner? . . . Seeking a similar but more immediate answer, free-agent first baseman Steve Garvey and agent Jerry Kapstein are off on a cross-country trip to meet with officials of five teams after preliminary talks with eight of the nine that drafted him. Dallas Green, Cubs general manager, recently said the club's owner, Chicago Tribune Co., has pledged its full resources to try to sign Garvey. That would set up Bill Buckner for trade.