Just one year of Vince Lombardi on the capital scene, that's all it took to land the late king of coaches in the Washington Hall of Stars, among five sports greats just selected by an expert panel for the third annual inductions at RFK Stadium.

The others to be saluted at halftime of Nov. 1 Redskins-Cardinals: baseball's Eddie Yost and Buck Leonard, football's Brig Owens and boxing's Bob Foster. Their names will go on large panels on RFK's mezzanine railing, their portraits in the Starplex clubhouse . . .

Lombardi was 7-5-2 as Redskin boss, and 1981 Redskin center Jeff Bostic allows 14-2 would be nice openers for Joe Gibbs, but "realistically," 8-8 or 9-7 "would be good, considering . . ." No wonder Our Team has trouble finding its way to enemy end zones: The Redskins steered scheduled guest speakers Mark May and Russ Grimm to 17th and L for yesterday's Quarterback Club season bow, M.C. Mal Campbell was told, and they never did find their way to the Touchdown Club at 20th and L streets NW. That left offensive linemate Bostic to fend off the wolves in the luncheon audience. "Oh-oh," whispered Bostic's wife Lynn, "watch out for the jokes," and sure enough, here they came. Not so funny: "No, I won't go head to head with my brother Joe (of the Cardinal offensive line) at St. Louis unless we get a couple more linebackers hurt". . . . Seriously, Bostic said, "I think what the Redskins are needin' right now is a leader." Hmmm.

Among the restless natives in RFK during Sunday's Giant Step Backward, one was overheard to say if she had her way, her husband the quarterback wouldn't be here next year . . .

One outpost not overwhelmed by Leonard-Hearns: Eastern Shore's exclusive closed-circuit site, at $22 a seat, in Salisbury, Md.; ticket sales slow, admits D.C. investor Barney Shankman . . . But Bowie Kuhn brags: big-league baseball set a one-week-in-September attendance record, Labor Day through Sunday, 1,602,032. Split season to thank (gulp)? . . .

Capital-area Penn Staters gather tonight for dinner, 6:30, at Loew's L'Enfant Plaza; speaker, Nittany football's radio voice, Fran Fisher.

Los Angeles Laker forward Jamaal Wilkes and wife Valerie have lost an eight-day-old daughter by sudden, unexplained death. In Wilkes' previous marriage, a year-old daughter died in 1977 of congenital heart disease . . . Oklahoma Coach Barry Switzer and wife Kay have petitioned to end their 17-year marriage; vow to "remain friends."

A. Record NCAA I-A fumblefest, on wet Sept. 20, 1969, in Tallahassee: Wichita State at Florida State: 17 by Wichita, 10 lost; 27 by both teams, 17 lost . . . Q. From 1946 to '62, three batters monopolized AL season leadership in drawing walks. Who; how many titles each?