Letting go of a colleague

A person that I trained back in April hasn't worked out. He hasn't taken his work seriously, so he is being let go from his contract.

It's a bit sad that a bunch of us have invested so much time to help him out. I trained him for 1.5 hours, starting at 8 am each day for half the day. My friend and colleague, and another colleague, were his co-team leads, and basically handheld him.

This person was being monitored for two weeks, which coincided with my two-week vacation. I got the news officially today that he was being let go when I was asked to take a look at potential candidates to fill this person's position.

It is bittersweet, but it's the right call given how unproductive he has been.