There Is a One-Boss Limit at All Times

George Steinbrenner, who turns 75 today, announced last week that his son-in-law, Steve Swindal, would eventually succeed him as the boss of the New York Yankees.

Steinbrenner did not say when this would happen, but it is hard to imagine his relinquishing authority to anyone.

John McMullen, a limited partner of Steinbrenner’s in the Yankees when he bought the Houston Astros in 1979, explained the move by saying, “Nothing is more limited than being a limited partner of George’s.”

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Trivia time: Who was the last major league pitcher to have at least 20 complete games in a season?

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Late-night fodder: The Yankees have won two games in a row, but last week David Letterman said: “You know what they start doing this time of year down in Washington, D.C., at the White House? It’s the big T-ball tournament on the White House lawn. Yeah, the big T-ball tournament, and yesterday a team of 6-year-olds took a doubleheader from the Yankees.”

Also from Letterman: “You know, T-ball has no pitching -- it’s like the Yankees.”

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Laker critic: Steve Kerr, who has five NBA championship rings, gave the Lakers a C grade for their draft picks in the column he writes for Yahoo.

“Phil Jackson will be gone before Andrew Bynum is ready to play in the NBA,” Kerr wrote. “Bynum is a high school center who could one day be good, but he’s a project. This is the highest selection the Lakers have had in years, and they had a chance to add any one of a number of players who could have helped immediately.”

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One way to cut payroll: Mike Pereira, the NFL’s director of officiating, was among the speakers at the L.A. Sports & Entertainment Commission’s NFL 101/201 seminar last week at Hollywood & Highland.

Pereira said the minimum number of players a team on offense needs to have on the field is seven, because that’s how many men need to be on the line of scrimmage.

“And the minimum of players for a team on defense?” Pereira asked. “The answer is none. You don’t have to put anyone out there if you don’t want to.”

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Complaint department: Amy Trask, chief executive for the Oakland Raiders, also was at the seminar. Pereira said that Monday is usually the day complaints about officiating come his way, then added, “Except in Amy’s case. She begins e-mailing on Sunday.”

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Looking back: On this day in 1999, Pete Sampras defeated Andre Agassi in straight sets to win his sixth Wimbledon title, the most by any player in the Open era. Sampras also tied Roy Emerson’s record of 12 Grand Slam championships.

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Trivia answer: Fernando Valenzuela of the Dodgers, who pitched 20 complete games in 1986.

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And finally: Johnny Damon of the Boston Red Sox, a guest of NBC’s Conan O’Brien, said of the title of his book, “Idiot”: “My mom did not approve of it, but ‘Genius’ just doesn’t ring the same bell.’ ”

Larry Stewart can be reached at larry.stewart@latimes.com.