A shake-up of top commanders at the Charleston County Sheriff’s Office stems from an effort to improve communication with other area law enforcement agencies, officials said today.

On Friday, Charleston County Sheriff Al Cannon abruptly dismissed Assistant Sheriff Andrene Coury-Smith and Maj. Oliver “Ollie” Puckett, stating there was “a need for a new direction in the positions.”

Both officers were relieved of their duties Friday, Maj. Jim Brady said.

Neither Cannon nor Brady initially offered further explanation of the moves. But today, Brady said the sheriff acted out of a desire to “make sure the command staff is in closer contact with other area agencies and are involved in working with their command staffs more so than in the past.”

Brady declined to elaborate, but said the moves do not stem from any particular incident or involve any wrong-doing on the part of Coury-Smith or Puckett. The sheriff does not wish to discuss the episode in further detail, he said.

Coury-Smith, a 30-year veteran of the sheriff’s office, could not be reached for comment today.

Puckett, who was promoted to his position last year, supervised specialty teams such as the bomb squad, the SWAT team and the traffic unit. Reached on this cell phone this morning, he said: “No comment, and don’t call here again.”

Cannon tapped Chief Deputy Mitch Lucas, administrator of the county jail, to serve as acting assistant sheriff. A replacement for Puckett has not yet been named.

Check back with postandcourier.com for more on this story as it becomes available.