After reading the rest of the posts another thought comes to mind...
When I'm driving the boat, if my backseater is somehow left too close to shore, or left dangling out in deeper, unproductive water, I would expect him to speak up. Sometimes I get so into my own pattern that I forget about the other guy. I'm a naturally considerate person and if I'm making the day miserable for another guy, I want to hear about it! Even if that means both of us on the front deck, I'll make the necessary adjustments without a second thought.
This goes for pattern issues too. If I'm struggling and you think you know where they are, speak up. Unless you want to go out into 70 ft of water and bobber fish, I'll probably change in a heartbeat.