Thank you for your answer! It is pretty detailed answer for me.
Now I will follow your suggestion, I will keep it simple. Actually, for now it is not the main point to decide how exactly the Brain Center works in my system.
What about hierarchy, I think, you may understand me wrong, because I have formulated my accountabilities wrong, maybe.
Also to use the Brain Center as an advisor is a good idea! Thank you, I'll try.
If there are more complicated challenges appear, I will write here more precise situation.