Murtough, Fletcher & "Manager" dynamic

Where do each of these guys currently sit in the chain of hierarchy? Who's accountable to who and do you imagine that changing if we get a new manager?

It feels a bit strange, that we have a director of football but the guys who are apparently calling the shots on Solskjaer's future are the likes of Woodward/Arnold. Now to a degree, this could just be because we had to create a role for Murtough without looking like we were installing someone above Solskjaer in the hierrarchy (i guess thats...

Murtough, Fletcher & "Manager" dynamic