> By hiring junior engineers, and giving them the training and development they need to flourish

If you don't have battle-hardened, experienced, senior programmers around, who's going to train them? Who's going to answer questions about design? Who's going to come over to their desk and teach them how to test X?

Actually, I somehow think I know who the author wants to train all these juniors:

> Avi is the Dean of The Flatiron School, an intensive program to learn Ruby on Rails in New York