There has been plenty of rough seas for the Navy Midshipmen men’s basketball team the past few weeks, so their new head coach must steady the water. The good news is the new head coach knows everything there is to know about the program. On Wednesday, the Midshipmen promoted Jon Perry to head coach, removing the interim tag he assumed after the retirement of Ed DeChellis two weeks ago. Perry will be the 20th men’s basketball coach in program history. Perry’s bench won’t look the same, though. Along with DeChellis’ departure, one of the program’s long-time assistants, Emmett Davis, retired on Tuesday. Plus, Perry will have a new boss soon, as athletic director Chet Gladchuk will retire. The decision to promote Perry could be taken as a parting gift. In the release, Gladchuk said he was confident Perry could position the Midshipmen to make the NCAA Tournament next year, reasoning that the program’s appearance in the Patriot League Tournament championship game means they’re close. He reasoned that continuity wa