1. It is now vitally important to have a clear, mutually agreed upon 30/60/90 program the junior is aware of. These need to be measurable, achievable goals, with specific seniors to reach out to to accomplish. The seniors should also be aware and consenting to play as mentor.

2. Senior engineers should proactively pair program, review, or otherwise attend to the junior as much as the junior is comfortable with. (If the junior's discomfort with mentorship gets in the way of their growth, we need to manage the junior. This shouldn't be mistaken for a junior that doesn't need the mentorship and would understandably find this intense attention to be smothering.)

3. The entire team needs to be aware of onboarding the junior. Expect velocity to slow noticeably for a little bit, until the junior is able to do minor bugfixes and tool building, then slow again when the junior takes meatier projects like features.