User blog comment:Zwhit3/Groves and Gillete/@comment-3331718-20120116160045/@comment-4898132-20120116180159

The reason for wearing "more finely decorated officer clothing" could be because the uniform was updated(OST did take place some years after CotBP after all).

And I for one wish that Groves returned, as he had a fair role throughout the films. Gillette, however, I'm not too eager to see again. No offense against him, as I did like that he appeared in at least one more POTC adventure, but I don't really have the "I want him back" vibe. I dunno. But if one of them return, that would be good.