The Nationals are looking for a new in-game host, someone to emcee their daily Inside Pitch Live broadcast from Nats Park for home games.
Walters appeared in only eight games with the Nats and started just one, the team's final outing of the year. In the short window he had, however, Walters experienced relative success.
The Nationals added some pitching depth, re-signing veteran Chris Young and adding reliever Gabriel Alfaro on minor-league contracts with invitations to spring training.
The Nationals have named Bobby Henley as their new third base coach, replacing the void left by Trent Jewett who joined the Mariners earlier this month.