How to Decide Whether to Fire Someone

One of your direct reports isn’t performing up to snuff. You’ve done everything you can think of to help them improve, but you’re not seeing any significant progress. And now you’re agonizing about what to do. Should you fire them? How can you know for sure? Is it better to take swift action? Who else should you consult? And what are the costs of delaying the decision?
Source: New feed 2