There appears to be two assistant coaching jobs up for grabs in St. Louis.
Kirk Muller has informed the Blues that he will not be returning, according to Sportsnet's Elliotte Friedman.
The news comes a day after the team announced a one-year extension with head coach Ken Hitchcock and the departure of assistant coach Brad Shaw.
Blues general manager Doug Armstrong had offered extensions to all of the Blues' assistant coaches, noting that Muller could have been a successor for Hitchcock at the conclusion of next season.
Muller has head coaching experience, having served as bench boss for the Carolina Hurricanes from 2011-14, amassing a record of 80-80-27 in 187 games.
