I'm not sure where this is going, but my wife and I make a pretty good team when it comes time to launch or retrieve.
While she's getting the ramp permit I'm installing the plugs, when she returns she'll double check to be sure I didn't miss one, we'll both remove the tie down straps, she'll attach a line to a bow cleat, I'll back it in then release the safety hook, she'll guide it off the trailer and tie it up while I park the rig.
Retrieving is almost the opposite. She'll guide it or drive it onto the trailer while I stand by the safety hook, I'll pull it out of the water and we both prep it for the road.
My old boss used to say:
Teamwork is essential, nobody takes the blame alone.