The middle-out bubblesort stuff is so they don't have to decide where to put you. You're a cog with a certain amount of learning in you and can be put anywhere

The middle-out bubblesort stuff is so they don't have to decide where to put you. You're a cog with a certain amount of learning in you and can be put anywhere someone wants your butt in a seat. It's credentialism at its base, but it's also resource engineering to cut down on management overhead. Just like hint-based management in general, except in these cases the hint is the person's skills.