More likely than who? Anyone else in an organization? Also, the elaboration of "Providing deep domain knowledge" explains it as deep domain knowledge of produc

More likely than who? Anyone else in an organization? Also, the elaboration of "Providing deep domain knowledge" explains it as deep domain knowledge of product management. The is akin to saying the engineers have deep domain knowledge of engineering, and doesn't explain why project managers are more likely to be lynchpins than other positions. But then again, he didn't mention what these other positions were.