I would confess to be slightly won over the role, despite initial concerns, i think it depends on the role and how much power you want to delegate. I agree to an extent that i would like the manager dictating signings etc. But there is a role in managing the clubs assets and maximising their value and development. For all Walsh's faults and he messed up first team recruitment much, he really did some good work getting fees in for deadwood like Cleverley, Oviedo, Gibson and the like and clearing the wage bill. He got loan fees in and put players to work elsewhere maximising them as assets but also developing and raising their profiles in whatever standard they were playing. That in itsself is a source of revenue.
Additionally you have to get it right once. If Lookman for example goes on to be worth 50 mill in the years ahead, it goes a long way to justifying the role and approach.
It does however feel that Brands is being brought in with a lot of power, more so then Walsh, will be interesting to see the impact, in some ways DOF's seem to get a free ride, its always the manager who takes ultimate responsibility, perhaps the best job in football at the moment.