The league standings are a source of satisfaction to some club owners who made coaching changes, but not to others. The statistics of the weekend are a mixed bag, too.

Within two weeks Fran Tarkenton of Minnesota has indicated that he is not too old at 38. David Whitehurst of Green Bay is not too young at 23. Pat Haden of Los Angeles is not too short.

In a sport where some coaches won't trust quarterbacks with strategy, Terry Bradshaw prospers calling the tactics - with the help of a mighty arm.

At 36, MacArthur Lane of Kansas City is not too old to gain 144 yards with a 1-4 team, which may be a tribute to rookie head coach Mary Levy's ability to establish a running game where other teams fail.

The Eagles'Wilbert Montgomery is not too young at 24 to pound out 144 yards against Baltimore on a day when a losing Cincinnati team held 31-year-old O. J. Simpson to 35; nor is Terdell Middleton, 23, of Green Bay, who hacked out 148 yards against what had been regarded as a respectable Detroit defense.

The Colts' Joe Washington is not too light at 182 pounds to block spectacularly. Twice he sprung 225-pound Roosevelt Leaks in a sustained, 71-yard show of muscle for the first touchdown in the loss to Philadelphia.

An irony was that although he was the most dangerous performer on the Colts' squad - the leading rusher with 40 yards, the leading receiver with four receptions, and once more a yard punt return - Washington was proven open-field threat with a 24-not in the lineup when the Colts took four straight shots at the Philadelphia line from a yard out, without success.

At that point, Bob Irsay, a sort of "playing owner," reminded onlookers of the late Redskin owner George Preston Marshall.

Irsay stood in his box, wagging his arm like a passer, as if the Colts' coaches, facing the other eay, could see him.

The one-time substitute quarterback at the University of Illinois won no popularity contest letting Lydell Mitchell go to San Diego after a salary and racial dispute. Nor was Colt management applauded for letting tight end Raymond Chester go to Oakland.

But would-be-passer Irsay would have picked up some votes after that botched scoring opportunity particularly after an almost immediate turn of events justified his sentiment.

The Eagles fumbled the ball right back to the Colts, at the Philadelphia four-yard line. Then, Colt coaches not only instructed quarterback Bill Troup to pass on first down - it went astray - but also on second down. That one was executed so slickly that no one was near Leaks when he ran a short turn-out pattern for a unchallenged reception on the way to a touchdown.

His team leading, 14-0, Irsay stung his hands with applause and raucously chanted the Colt team song.

By the fourth quarter Isray had worked his way down to the Colt bench. He saw the Eagle 17-point rally snatch away his moment of glory. It was the Colts' fourth loss in five games. Bert Jones, too, was on the sideline instreet clothes, still recovering from a shoulder-separation.

Once more the defense came apart. Now it has allowed 148 points in five games, an average of almost 30. Last year the Colts allowed fewer than 16 a game.

Miami moved out to a two-game lead in the AFC East, despite the absence of Bob Griese, and New England kept pace, apparently well on the way back from the shock of losing wide receiver Darryl Stingley.

New coaches Ray Malavasi of the Rams and Jack Pardee of the Redskins are definite pluses. Sam Rutigliano's Browns are improving, despite doing without injured Greg Pruitt the last three games. Chuck Knox is giving a rundown Buffalo club some self-respect in the early going.

Neill Armstrong got off well with a 3-0 record, but Minnesota and Oakland were too much for his Bears the last two weeks.

One impressive thing that Levy has done at Kansas City has been proving that even a have-not team can move the ball on the ground.

Off his 0-5 record, Bud Wilkinson has indicated that he hasn't brought any residual miracles to St. Louis. The losses of Terry Metcalf, Ike Harris, J. V. Cain, Conrad Dobler and Ken Reaves ruined him before he started.

Monte Clark apparently does not have a magic potion to turn Detroit around suddenly as he did at San Francisco. Don Coryell inherited - and has not yet solved whatever problems influenced Tommy Prothro to quit San Diego.

Dick Nolan is beginning all over again at a coaches' graveyard in New Orleans, but his two show there may be hope.

Pete McCulley should be allowed to share responsibility for San Francisco's 1-4 record with Joe Thomas. The general manager is a dominating figure with a hand in every part of the wholesale rebuilding. He hired McCulley.

The best comeback by a coach has been Bart Starr's. He has the Packers stop the NFC Central with a 4-1 record.