http://en.wikipedia.org/wiki/Jerome_Bettis#RamsRams
Jerome Bettis was picked in the first round (10th overall) of the 1993 NFL draft by the Los Angeles Rams. On July 22, 1993, Bettis signed a three-year $4.625 million contract with a signing bonus in excess of $2 million.[2] As a rookie he flourished under Chuck Knox's ground-oriented offense. He quickly earned the nickname "The Battering Ram" as he rushed for 1,429 yards, and was named a First-Team All-Pro and Offensive Rookie of the Year. He rushed for over 1,000 yards in each of his first two seasons with the Rams.
The Rams moved to St. Louis for the 1995 season. New coach Rich Brooks instituted a more pass-oriented offense, a major reason why Bettis was limited to 637 yards—a significant dropoff from his 1993 and 1994 totals.[citation needed] Brooks asked Bettis to move to
fullback for the upcoming 1996 season or if he preferred to be traded. Bettis stated he thought he could still help a NFL team with his running. On April 20, 1996, he was traded to the Pittsburgh Steelers with a 3rd round pick in the 1996 NFL Draft in exchange for a second round selection in the same draft and a fourth round selection in the 1997 NFL Draft.[3]