Lawyers for Cmdr. Bryce Benson on Tuesday issued a surprising one-page rebuke of statements from senior Navy leaders.
Cmdr. Bryce Benson has waived his right to a hearing to determine if he should face criminal charges in the incident.
Defense attorneys say officers aboard the Fitzgerald were strong performers whose equipment didn't work properly.
A preliminary hearing for two junior officers at the controls of the USS Fitzgerald highlighted a series of errors.
The officer of the deck for the USS Fitzgerald when it collided with a vessel pleaded guilty in a court-martial proceeding.
As court proceedings open on Tuesday, the Navy will begin hashing out what went wrong and who should be held accountable.
The doomed submarine's hull imploded at a depth of 2,400 feet with a force of about 22,000 pounds of TNT.
No pattern or linkage has been found in the initial analysis of accidents, the director of the Joint Staff said.
A spokesman said the Fitzgerald crew is at fault because the Crystal was traveling on its right side.
Two Senators have introduced a measure they say will restore Navy surface force readiness in the wake of a series of crashes.