I'll mention T'ra Saa again, who's showing with Battle Meditation allowed a near-complete evacuation of a besieged location against a superior force to get out with it's forces mostly intact. It had been intended to be a trap to wipe out the Galactic Alliance Core Fleet and the Jedi and a good portion of the Fel Empire's forces in one go, but due to her powers they made it free.
Originally posted by Q99
Later material revealed there was a Grand Admiral battle meditating at Endor, who went up with the DS2.Like Neph said on page 2, it was Declann.
I mean, think about it, would Sidious allow him to be distracted doing multiple things at once during such a crucial showdown?
Yet the ROTJ novel states that it was the Emperor's death that threw the dark side and, consequently, imperial forces into disarray. Declann is irrelevant.