Challenging conversations are inherent in a manager's job, yet this knowledge doesn't make it any easier when you have to sit down and let a good person know they're not cutting it and it's time for them to go. While you own doing everything in your power to coach, train, and support them, in some instances, the individual's abilities don't match up with your firm's and the job's needs. Here's guidance on handling this tough situation with clarity and empathy.