Chargers RB Darren Sproles remains the most frequently mentioned free-agent possibility in St. Louis as a change-of-pace backup to Rams RB Steven Jackson. But another attractive option generating some behind-the-scenes buzz at Rams Park is Cadillac Williams, who took on a new role this past season in Tampa Bay as an effective backup behind LeGarrette Blount. "Cadillac would be a perfect fit behind Jackson," one team insider said.
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