You can have a smaller 'premium team', who you select from your existing team for competence and niceness. You then make it part of the job ("have a nice day")

You can have a smaller 'premium team', who you select from your existing team for competence and niceness. You then make it part of the job ("have a nice day") using existing procedures. Interestingly, this would also have the effect of making it almost guaranteed you'll get someone surly if you don't pay the premium. As a customer, I don't think I like the idea. But I think it could be made to work.