After replacing jr employees, manager time will be the bottleneck, BC you need high context managers/approvers/directors to guide the work.
The upwards moving pyramid model doesn’t seem to factor in demand curves for the firm’s outputs. Depending on the shape of those curves, firms might instead massively increase the outputs of bottom-level employees, these might be directly productized or passed up to managers for further filtering and processing. Intra vs extra-firm demand curves is an interesting idea
How will/can unions of lower level white collar employees co-ordinate to stop the pyramid sinking? (Interestingness waterline link). Never writing stuff down, keeping context scarce will help for a while. More senior management might see the writing on the wall and form cartels, seems hard though since that’s more up to c-suite.
Korinek and Suh model wages as a function of fraction of automatable tasks. What else could you use? What other economic analyses are good? See also AGI could drive wages below subsistence level | Epoch AI https://epoch.ai/gradient-updates/agi-could-drive-wages-below-subsistence-level