I just moved to Montana, so someone else would have to check. There ARE Justman authored memos about the episode -- but I do not recall if there are any related to production or post-production.
If Justman reviewed dailies for TDM, how could he have possibly missed Decker's insignia when he objected to Tracey? Certainly he must have known Decker was another starship captain...
Justman might have missed the dailies that week. Also, Justman might have known that Decker was actually a starship Commodore, not a starship Captain, and therefor entitled to/obligated to wear a different patch.
Why do you
suppose Justman didn't object back during TDM?