‘The ripple effect of Mularkey’s hiring by the Bills will be felt in Pittsburgh where Steelers coach Bill Cowher already must replace fired defensive coordinator Tim Lewis and wide receivers coach Kenny Jackson. Mularkey may fill his coordinator positions with Steelers quarterbacks coach Tom Clements (offense) and Bills assistant head coach Dick LeBeau (defense). LeBeau, who was the Steelers’ defensive coordinator when they went to Super Bowl XXX after the 1995 season, met with Cowher yesterday about replacing Lewis.’