Can a HC have long-term success under the Bengals structure?

[THE PISTONS]

So we know that coaches have to scout college and NFL free agents. Evaluate the roster. Create the playbook. Structure practices. Hire assistants. Gameplan. Coach, etc. It's a huge ask to have all those skills at a high level in 1 person. Plus, we know they don't rely heavily on free agency and covet comp picks.

For teams with average GM/Scouting functions coaches can focus on playbook, gameplanning, and coaching. This seems like more of a realistic ask.

For the Bengals, say a HC was really innovative and a good coach...but bad at drafting - It would be hard to succeed. They'd also likely look like a mediocre HC due to lack of players.

Is it possible to have a HC succeed long-term here? Can 1 person excel in all of the categories that the Bengals demand of a HC?