I am a science capain who recently acquired a KDF bridge officer through diplomatic channels (I reached Ambassador). They have an excellent skill set, apart from the commander ability, which I want to change. Can I get someone in my fleet to train them in the skill I want, or will I have to keep an eye on the exchange and spend hundreds of thousands of credits on a BO to train them up myself?
I'm not 100% certain, as I've never tried to trade one, but I believe it was said that Diplo BOs are bound to you just like the Liberated Borg and Breen BO once commissioned. My guess is that the Exchange is your only avenue.