Out of curiosity, what was the path that the engineers have been taking? The limiting communication between agents to my mind is obvious to anyone who hasn't swallowed orthodoxy Agile development completely whole. And in my experience the people who have, are rarely the devs. Context switching, between agents, people or whoever, require ramp up time to relearn context. It's always slower and more expensive, other potential upsides about long term training or developers being more replaceable notwithstanding. But no agent gets long term training, not in a 1M context window.