I realize you're going to overpay at a chain like Panera, but you at least expect consistency and decent service. The employees at this Panera make it far more complicated than it needs to be. Let's start with the ordering process. Not everyone wants the ingredients on a specific menu sandwich. How hard is it to make a plain turkey with lettuce tomato and onion on a French baguette? Apparently harder than you think. Variations should be simple, but the person at the register struggled to make the change. So let's move to the second phase. The person making the sandwich struggled and missed the fact that it was a large (meaning two half sandwiches had to be made.) The third person who bags everything (when she takes time away from talking to fellow employees) at least realized the mistake and then had to step in and redo the order.
Panera is what it is, but a three stage process (ordering, making and handing it over) that's designed to promote efficiency and consistency is clearly not working.