this has happened to me in my smaller club tournaments a few times. it's actually very frustrating, especially since being at the back of the boat already has a slight disadvantage per say. usually i'll speak up and just ask for a little bit of room to be able to flip and pitch to the bank or whatever we're fishing at the time. i've tried dragging something off the back of the boat, but it's a pain in the butt to keep up and I usually just wind up getting even more frustrated since it's not ideally what i'd like to be doing.