My issue with the paragraph is that it doesn't really connect into anything meaningful. It's just saying that Jarred was a beginner.
The only connection it has is as a segue into calling Jarred a terrible manager here:
> It was at this point - when he suddenly became a manager - that this "beginner energy" started to hit differently for me.
Note how "beginner energy" is considered good in the first paragraph, but suddenly terrible when applied to a different thing here. Terrible work culture aside, and the fact that it seemingly worked out for those who joined aside, Jarred would obviously have beginner energy in management as well considering he's not done it before. Why is it suddenly bad here?
Honest question, is there any record of Andrew actually saying Jarred had "beginner energy," or was this invented for the post as well?