I'd like to offer an alternative to the retention issue since I don't think it's unique to Naval Aviation (which a few people have pointed out). I think Naval Aviation is suffering from an identity crisis.
Since the end of WWII, we've brought a dynamic multi-mission capability with relatively low risk to our forces. Because of the asymmetrical maritime and technological advantages, we've been able to be involved in every major military operation regardless of where it happened. This includes, for better or worse, operations in land locked countries like Afghanistan and Kosovo/Serbia.
With the pivot to INDOPACOM, those advantages have evaporated and, in several circumstances, become significant disadvantages. CSGs don't have the luxury of sitting 10s of miles off a threat coast with impunity and launching waves of aircraft on offensive missions like they did in Vietnam and the Middle Eastern wars of the 90s and 2000s.
In my opinion, it's time for Naval Aviation to take a long hard look in the mirror and decide what we want to bring to the table in the future. Overland (or near to land) power projection against a peer adversary probably isn't it. IMHO, it's blue water supremacy and Rhino/Growler/JSF aren't going to get us there with their limited range and payload (regardless of MQ-25 status).
Again, just my opinion but hopefully this helps/sparks discussion/makes sense.