 On October 17, 2006, Lou Piniella signed a three-year deal with an option for a fourth season to manage the Cubs — the 50th manager in team history after Dusty Baker was not offered an extension of his contract following the 2006 season.On November 14, 2006, the Cubs improved their depth by signing Mark DeRosa to a three-year, $13 million contract.DeRosa had played several positions for the Texas Rangers and Atlanta Braves earlier in his career.