Rumors that the Dallas Cowboys are filling their coaching staff with former Tampa Bay Buccaneers staffers to clear a path for Jon Gruden to eventually replace head coach Jason Garrett are "ridiculous," a "reliable team source" told ESPN's Ed Werder.This month the Cowboys have hired defensive coordinator Monte Kiffin, defensive line coach Rod Marinelli and special teams coach Rich Bisaccia, all with ties to Gruden when he was the Buccaneers' head coach.Dallas also promoted Bill Callahan, a former Gruden assistant in Oakland, to offensive coordinator.Gruden is part of ESPN's Monday Night Football broadcast team.Briefly Titans: A source told The Associated Press that coach Mike Munchak has interest in adding suspended former Saints defensive coordinator Gregg Williams to his staff. NFL spokesman Greg Aiello said Williams' potential reinstatement after his role in the Saints' bounty scandal has not been addressed. Munchak and Williams have ties going back to the Houston Oilers. Rams: Center Scott Wells had knee surgery this month to repair torn cartilage, the St. Louis Post-Dispatch reported. Wells had surgery on the same knee last spring. The former Packers Pro Bowler signed a four-year $24 million contract with St. Louis last spring. Dolphins: Free agent left tackle Jake Long is believed to be seeking at least $10 million annually, according to the Miami Herald, citing people in touch with the team. Long, the No. 1 overall pick in 2008, is a four-time Pro Bowler but has battled through injuries. Cardinals: Amos Jones is expected to be announced this week as special teams coach in Arizona, reuniting with head coach Bruce Arians. Jones and Arians were assistants in Pittsburgh. Retired: Safety Chris Harris, who played for four NFL teams, announced on Twitter that he was retiring after eight seasons.