Ed Cavanaugh is gone as Army football coach, the 24-7 loss to Navy the final blow of a 10-21-2 West Point stand.

"Cavanaugh has worked very hard to improve the program," Athletic Director Carl Ullrich said of the former Lou Saban aide who took over on Saban's sudden 1979 resignation, "and we are grateful for his efforts. Though some progress has been made, we feel that it's time to make a change."

Ullrich hopes a new coach will be named before the new year . . .

U. of Arizona could be the next school sacked heavily by the NCAA. University President Henry Koffler and Athletic Director Cedric Dempsey announce receipt of an official letter of inquiry from college athletics' ruling body listing 18 types of alleged transgressions -- improper recruiting inducements, aid to athletes, etc., in football, basketball and track -- over a decade, 1971-80. Koffler and Dempsey, who assumed their posts only last July 1, will reply by April 1 . . .

Florida Coach Charley Pell, under fire lately for football recruiting ills during his tenure at Clemson, received ringing endorsement in Gainesville last night -- a two-year extension through 1986. Athletic Director Bill Carr lauded Pell's on-field success "while raising the academic productivity of his players to a new high, as well as the enthusiasm of supporters for our football program" . . . Enthusiasm? About 800 Gators and Seminoles rooters had at it on the FSU field in Tallahassee after Florida's 13-10 victory Saturday night -- leaving 25 policemen nicked and bruised and landing 22 fans in jail. Fifteen arrested on the field in the melee sparked when UF partisans raced out to tear down the goalposts and FSU fans rushed out to thwart them; another seven nailed in the stands on various disorderly charges.