A bad bagger will just throw stuff in without thought. A good bagger will put the heavy stuff at the bottom and fragile stuff at the top. An expert bagger will do that but also keep cold items together, separate raw meat from everything else, optimize the use of space, evenly distribute the weight between the bags, keep the center of gravity as low as possible, and do it all with a smile.

Most baggers never make it past good. It doesn't take talent. It doesn't take strength, agility, or high intelligence. It takes a different way of viewing the world. It takes having pride in your work, even when no one else cares.

Find the experts and hire them.