It takes all kinds to coach sports. Such as:

* Ron Ekker. St. Louis University's basketball coach, kicking his top rebounder/scoring coleader off the team, would say only that it was for disciplinary reasons. It took a week for Ekker to disclose why 6-foot-8 center Wallace Robinson was gone, as of Jan. 2: On Dec. 30, Robinson had come to Ekker's Indianapolis motel room after being benched (for missing a team bus) for most of the Billiken victory over Butler. The coach came out of that room with a broken nose and two black eyes.

* Hugh Johnson. Confronted with charges he paid starting players on his Richwood (W.Va.) High basketball team 50 cents to $1 for each rebound or assist, Johnson says they are as untrue as when aired two years ago. But a citizens group says it has sworn statements from two of Johnson's 1979-80 players that he did and seeks a hearing before the Nicholas County Board of Education.

* Don Perry. The minor league hockey coach (New Haven, AHL), had held out, saying the Los Angeles Kings' owner, Jerry Buss, was taking him for granted in announcing his promotion to bench-boss the NHL club. Perry finally took the job, effective with tonight's game in Montreal. But he extracted key assurances, since "I'm 51. I have got by all right. The glamor does not impress me."

* Mike Ditka. The old tight end, now on the Dallas staff, commented to the Chicago Sun-Times that if George Halas really wants him to coach the Bears, "I can work with anybody as long as they don't cut throats. They've been playing cutthroat in the Bear organization for 15 years." And, "The Bears had no semblance of an offense when they played us (10-9, Dallas). My 15-year-old kid could have played quarterback and directed a better passing attack." Meaning Ditka wouldn't keep Ted Marchibroda as coordinator?

* Bear Bryant. He can't understand all the hoopla about his leaving the East-West Shrine football game at Stanford at halftime. Shoot, says Bryant's Alabama spokesman, everybody had been told in advance that although he was head coach of the East, he'd be leaving early. "Coach, Mrs. Bryant and their daughter would have been forced to fly all night unless they caught that late afteroon plane."

* Bo Schembechler. East lost the Shrine game, 20-13, and Michigan's man on Bryant's staff quipped (?): "I don't know where the Bear went."

Maybe old coach Ralph McKenzie, down for a special Timmie Award at the Touchdown Club's 47th annual dinner, Saturday, Sheraton Washington, will have a chance to call on a special friend here. McKenzie, 87, guided the Eureka College football team on which Ron Reagan played . . . The president--forgive his slip in congratulating Vin Scully as "the first" broadcaster to make Cooperstown, when he's really the sixth--gets sporty again Feb. 8, hosting a National Hockey League all-star luncheon. That's before the NHL all-star dinner that night, eve of the game at Capital Centre, with radio's Larry King as toastmaster . . .

Sugar Ray Leonard and Salvador Sanchez were recognized as fighters of the year 1981 in WBC ceremonies yesterday in New York . . . Mickey Vernon, two-time AL batting champion for Washington, is the New York Yankees' new batting tutor.