Nobody likes to talk about firing. It’s not something to celebrate: if you need to fire someone it means you screwed up. Either you hired the wrong person, or — more common — you hired the right person, but failed to enable their success. Either way, the blame falls on the company (not the individual), so it’s no surprise that companies tend to avoid talking about their failures.
But despite that discomfort, firing is an important topic because in the long run, careful application of firing is actually more important than hiring. To understand why, consider this simple chart: