Comment by bornfreddy

No offense, but it sounds like you have jumped to a conclusion (which you can't even prove) and are trying to change the process so that you could nail the poor guy.

What is your purpose? Making the team perform great, I hope. Will you achieve that by picking on someone? Hell no. Others will protect him, because they know they will be next in line. Do you think the "underperformer" (if he really is that, even) is doing that because he is lazy? It is more difficult to ask for help all the time than just to do something.

How about you try to find a way to help him achieve the level that others are at? THAT is what should be your goal. Instead of spying on them, award team members who help others, so that they won't feel the need to hide. And make weak members feel safe. Currently it sounds like the environment is pretty toxic with regards to admitting to any problems.

If, after all the genuine effort, you still fail and need to let go of the guy, because he is really bringing productivity of the team down and you can't motivate him to change, then you should know that this is still primarily your own failure. Which is ok, everyone is allowed to fail from time to time. But it is a signal that you should try harder.

(speaking as someone who had to let someone go because I wasn't good enough to make them better... on two separate occasions... so I'm not judging)