Bishop has flourished in the AHL this season, but made no contribution to the Blues' successes this season.
The front office's inactivity shows how confident they are about the current roster and the possibilities for St. Louis this season.
With a little more than a month left in the regular season, St. Louis is headed for crunch time.
March will decide what seed the Blues hold in the postseason, making it the club's most significant month.
Here are the Blues' five most important games in March.