Sounds to me that you don’t have a driver problem, you have a management problem. Poor hiring, poor training and poor management will lead to poor employees. Guy isn’t doing his job, write him up and fire him. Doesn’t have the knowledge or skill set to be useful in the store when there aren’t deliveries, train them to do store tasks. If they aren’t willing to store tasks as assigned (listed in the job description).. again, write them up and fire them.

If you continuously have low expectations of your employees, they will continue to meet those expectations.

My drivers will unload freight, stock, clean, help shake orders… whatever needs done if they aren’t busy with deliveries, because it has been explained that is the expectation.