Pat Haden leaves Rams for CBS-TV . . . Chuck Fairbanks leaves Colorado to coach New York in U.S. Football League . . . Ken Beatrice leaves 7-9 p.m. slot to take "Sports Call" to 10 p.m.-1 a.m. on WMAL . . . and Harold Rossfields Smith leaves a federal courtroom under sentence of 10 years in federal prison.

Smith, onetime American U. track athlete and D.C. nightclub operator become big-time boxing promoter, faced up to 265 years on conviction Jan. 13 on 29 of 32 counts in the $21.3 million embezzlement of Wells Fargo Bank in Los Angeles. In an emotional plea for clemency, he told U.S. District Judge Consuelo Marshall, "Miss Marshall, I love you, you have been great to me."

Prosecutors, depicting Smith as a "classic, high-living con man" who masterminded the nation's biggest bank swindle and diverted some of the funds to pay rich boxing purses through Muhammad Ali Professional Sports Inc. (Ali unwitting), pressed for a 25-year term. Smith's penalty (plus $30,000 fine and 3,000 hours of community service) compares with three years imposed by Judge Marshall yesterday on Sammie Marshall, a codefendant accused of rigging bank records.

Smith stays free on $250,000 bond pending June 14 hearing on whether he will be incarcerated during appeal.