After spending three seasons on Sid Gillman’s Chargers staff, Al Davis went out on his own, and accepted the head coaching position of the Oakland Raiders.  Davis’s impact was immediate and undeniable, as he took the Raiders from a 1-13 club in 1962, and turned them into a 10-4 team the following year, earning AFL Coach of the Year honors along the way.

A recent article on talks about Davis coming back to defeat Gillman in one of their two matches in 1963.