Lamb caught one of two targets for 13 yards in Saturday's preseason loss to the Texans.
The Cowboys only had their offensive starters on the field for the first quarter, but as the group included Garrett Gilbert under center and not Dak Prescott (shoulder), there wasn't much production to go around. Lamb is locked into a significant role in the passing game when the regular season begins, but the second-year wideout's chances of putting together an explosive campaign will be tied to Prescott's health.