Thanksgiving! Hooray!

Of all the American holidays, Thanksgiving has to be among the best (after the 4th of July). There is nothing to buy, no cards to send. It's just a big meal and lots of football!
As to football? Do you remember the NFL game between the Washington Red Skins (I think) and the Dallas Cowboys in the mid 1970s? The time for the game is running out! The Cowboys are behind by like two touchdowns, at least. Their star quarterback, Roger Staubach, starts the drive, and wham! He's injured. He must be helped off the field. He is out of the game! Game over? Not quite. The Cowboys put in a quarterback no one had heard of before and never heard of again: Clint Longely. Like magic, this fellow started tossing passes, and before you know, the Cowboys had scored once, then twice, and then, I think, three times to beat the Redskins! Miracle of miracles. I seem to recall the field was even misty that early evening on Thanksgiving.
I also remember how great it was to see something like that happen: a no name taking a team to victory--and himself into obscurity.
Anyone know what ever happened to Clint Longley?
Shalom! Peace! And, ditto in all the other languages of the world!