Sorry I edited to include my point there. If you don't have 30-60 minute check-ins with juniors, they're not going to have the same rapid feedback that they'd get from in person mentoring.

And very importantly, I'm saying 30-60 minute remote check-ins are an absolutely insane idea that should never be implemented.

I don't know any kind of remote system that provides for anything even close to the power of in-person mentoring.