I have never seen a company operate at scale the way you're suggesting. Making business decisions is not engineering core competency.
The most common reporting line I've seen (working at tech companies that you would know and recognize immediately) is director -> { sdm, pm-t } where the director is typically promoted from one of those roles. There is an insulation layer between product and engineering, and as levels progress the line between pm-t and sdm blurs significantly.
The most common reporting line I've seen (working at tech companies that you would know and recognize immediately) is director -> { sdm, pm-t } where the director is typically promoted from one of those roles. There is an insulation layer between product and engineering, and as levels progress the line between pm-t and sdm blurs significantly.