Smith, 23, signed on with the Cowboys as an as an undrafted free agent out of San Jose State back in May of last year. However, he was placed on waivers just a few days after the recent NFL Draft.
Dallas elected to bring him back for the start of the preseason, and managed to make the 53-man roster.
This season, Smith has appeared in four games, but has yet to record a single statistic.
Bishop, 23, is a former seventh round pick of the Cowboys back in 2014. He managed to make the 53-man roster coming out of the preseason as a rookie, but was later waived and added to their practice squad a few months into the season.
Bishop has appeared in two games, but has yet to record a single statistic.