Its odd that you can't relay commands to your helmsman on the other ships.
You'd think you'd be able to with the very cool backspace feature that almost gives you a total-war style vantage point. That's really a bummer. It makes sense to me that you could give the other ships themselves AI to respond to your commands just like a regular npc would. You would be able to tell them to charge, skirmish, follow, hold, etc. etc. I was really looking forward to that honestly....
Maybe it'll get patched? (the prayer of all of us who pre-order)