sentences:  Under Cockrell's guidance in 2007, the Rockies slugged their way to a National League Championship, leading the circuit in batting, on-base percentage, and total hits.Cockrell was one of four coaches let go by the Rockies after a disappointing 2008 season in which the team won only 74 games.On December 7, 2008, Cockrell was named hitting coach for the Seattle Mariners.