Here is how it works. This is for a 4-star, you can scale up to a CINC.
Before the 4-star sees the slide deck, 50/50 chance the COS has looked at it (another 3 or 4 star). Prior to that, the at least two other 2 or 3 stars have approved it. Before that /2
It would/5
So, at the end of the day, 99% this is either a made up story or was a leak by a disgruntled staffer who is butthurt their preferred COA was not chosen.
There /14