Lester, 26, signed on with the Panthers as an undrafted free agent out of Alabama last year. He was unable to make the 53-man roster coming out of the preseason, but he wound up on the team’s practice squad.
In 2013, he appeared in 12 games and recorded 21 tackles, three interceptions and a fumble recovery over the course of 12 games.
Smith, 25, is a former sixth-round pick of the Packers. He has bounced around quite a bit since he was waived by Green Bay in April of last year. Carolina signed him to a future/reserve contract in January, but he was unfortunately among their final roster cuts a month ago.
Carolina signed him to their active roster a few weeks ago.