Poor leadership has cost a second leader his job this year aboard attack submarine Oklahoma City .

Master Chief Machinist's Mate (Weapons) Joseph Decker, OKC's chief of the boat, was removed Wednesday from his job on the Guam-based boat due to poor leadership. He was canned by the boat’s skipper, Cmdr. Patrick Friedman.

"He was relieved for a consistent pattern of ineffective leadership at the deckplate level," Cmdr. Corey Barker, a Submarine Force Pacific spokesman, said Wednesday . "Master Chief Decker was not relieved for misconduct."

Decker, who took over as COB in April 2015, is the seventh submarine leader fired from his post this year.

Barker characterized Decker’s relief as "administrative in nature" but also said he faces "further administrative actions," though Barker was not at liberty to discuss what those actions could be.

"He has been temporarily reassigned to Submarine Squadron 15, also in Guam, and what his future in the Navy will be is under discussion at this time," Barker said.

160505-N-TW634-039 SAN DIEGO (May 5, 2016) The Los Angeles-class fast attack submarine USS Oklahoma City (SSN 723), assigned to Commander, Submarine Squadron 15, enters the floating dry dock Arco (ARDM 5) for a scheduled maintenance period. Arco is a Commander, Submarine Squadron 11 asset under the operational control of Commander, Submarine Force, U.S. Pacific Fleet. (U.S. Navy photo by Mass Communication Specialist 3rd Class Derek A. Harkins/Released)

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The top enlisted on attack submarine Oklahoma City was fired Wednesday for what officials called ineffective leadership. The boat entered a floating dry dock in San Diego in May.

Photo Credit: MC3 Derek A. Harkins/Navy

In January, Decker's CO , Cmdr. Mike Conner, was relieved "for deficiencies in his leadership and proficiency in command."

Senior Chief Fire Control Technician Brandon Edmiston from Submarine Squadron 11 has assumed the responsibilities as OKC's chief of boat .