There's a trade-off between efficiency and robustness. It may not be as efficient, but it can be more productive in the long-term if you're better insulated fr

There's a trade-off between efficiency and robustness. It may not be as efficient, but it can be more productive in the long-term if you're better insulated from staff turnover, for example. Making engineers more replacable could also contribute towards lower wages (more able to hire beginners and make them competent, reduce leverage of existing staff).