According to the Navy Times, Capt Charles Maher of the attack submarine Memphis was relieved of his command over allegations of a 10-person cheating ring under his watch.  There was no evidence Maher was directly involved in the cheating.

Unlike several prior instances of cheating in all of the military services (Navy, Marines, Army), this appears to be the first time the commanding officer has been relieved over ethical failures in testing by subordinates.