Yup. A team has to have people in different roles. All have some kind of value, and people aren't all paid the same - that's the way it is. It's funny, people always ask me "why didn't you ever get rid of so and so" - I usually tell them the same thing "I was getting my money's worth - you know he wasn't making that much money". I wasn't expecting to get any better work out of a junior level position.

While you can expect people to do their best and to push themselves, every kitchen needs a chef, a line cook, and a dishwasher. And it isn't really reasonable to expect that the dishwasher wants to be the greatest dishwasher in the world. And you wouldn't expect the chef to complain that the dishwasher isn't pulling his weight on the team because they can't get orders out on time.

It is reasonable to expect clean dishes, though.