Comment by vjeux

For what it’s worth, at Facebook the general hiring process is in two steps. There’s a centralized hire/no hire that most people are aware of and then a second phase where team selection happens. This is where all the “hire for weakness” steps that the author mention happen. Teams are looking at this pool of people for speciality, levels... that they need and where the matchmaking happens.

There are also a lot of smaller but specialized longstanding loops like front-end, AI... and one off “reqs” for special roles that teams need.

The world of hiring is very fascinating :)