I'm somewhat playing devil's advocate here, but how is your startup's documentation? Sometimes juniors have a hell of a lot of trouble admitting that they don'

I'm somewhat playing devil's advocate here, but how is your startup's documentation? Sometimes juniors have a hell of a lot of trouble admitting that they don't understand something. Consequently, they won't be productive because they not only don't understand what they're doing, but they don't want to demonstrate their ignorance. If I were in your shoes, I would do a couple of things: 1.) Make improving documentation a big part of their improvement plan. 2.) Make it very clear that you value clarity above all else and actively encourage them to tell you they don't understand something.