Seth Seiders, (Al Capone's accountant) wrote a book about the "pivot man."
This is a key function in industrial organizations, bureaucracies and any organization with more than thirty people.
It's someone (often not a 'man') with a boss and with employees.
In our modern world, this person goes to meetings. That's their job. The company can afford to pay them well and give them resources to help keep things in sync.
Pivot people rarely make decisions and they don't make widgets. They have influence, but their real work is in the pivoting part. Bringing human energy to the art of coordination.