Tim’s productivity score was zero
Most of the time he would try to pair up. He just make noises that implies he is following your work. But you can see that is not the case when he tries to make a comment or a suggestion, he is clueless. Trying explaining things to him is a waste of time.
Rarely he decides to work on a task himself. No matter how trivial the task is, he needs someone to spell out what to do step by step. Even then when he sends a code review, you can find some surprises. He becomes a net negative because he can take a task that should take 2-3 hours top for a regular dev and then spends 1-2 week on it while also wasting more than 2-3 of someone else's time.
It is always fun to see him grab an easy looking task that is way beyond his capabilities and then struggle for weeks and tries to weasel himself out of it.
I never saw someone so immune to learning. He is in the team for over 2 years yet has a productivity of zero. I don't understand why companies keep such people