 Lamb began the 2014 season with the Myrtle Beach Pelicans of the Class A-Advanced Carolina League, and received a promotion to the Frisco RoughRiders of the Class AA Texas League during the season.On December 10, 2015, the Rangers traded Lamb to the Chicago White Sox for Myles Jaye.The White Sox traded Lamb to the Colorado Rockies on July 25, 2017 for cash considerations.