That's not really accurate. 4 are usually college hires, at 5, other job families can split off. Engineers, Managers, TPMs, Product managers, etc. they're all

That's not really accurate. 4 are usually college hires, at 5, other job families can split off. Engineers, Managers, TPMs, Product managers, etc. they're all in parallel. So you have Level 4,5,6,7 and higher engineers as well.