We don't have set shifts. We split the driving, hubby usually opens doors, I usually back into the dock, either one of us takes care of paperwork at the shipper/receiver, I take care of the paperwork for the run. etc. We just swap back and forth, if I ended driving he starts the next shift, and so on. Sometimes, it's harder to do it this way with the new HOS, but it's what we are used to doing.
I guess this shows that all teams have their own way of doing things.