" If people cannot ever develop into one of our top three cooks, servers, managers, or maître d’s, why would we hire them? How will they help us improve and become champions? It’s pretty easy to spot an overwhelmingly strong candidate or even an underwhelmingly weak candidate. It’s the “whelming” candidate you must avoid at all costs, because that’s the one who can and will do your organization the most long-lasting harm. Overwhelmers earn you raves. Underwhelmers either leave on their own or are terminated. Whelmers, sadly, are like a stubborn stain you can’t get out of the carpet. They infuse an organization and its staff with mediocrity; they’re comfortable, and so they never leave; and, frustratingly, they never do anything that rises to the level of getting them promoted or sinks to the level of getting them fired. "

― Danny Meyer , Setting the Table: The Transforming Power of Hospitality in Business