He refined upon his patience during game - play , which is needed in football to wait for blocks to set and formed holes to emerge in the offensive line before accelerating forward .
Barber improved in other ways over the course of his career .
Barber refined upon Barber 's patience during game - play , which is needed in football to wait for blocks to set and formed holes to emerge in the offensive line before accelerating forward .
Barber improved in other ways over the course of his career .