Isn it a waste of talent if board members cannot help staff?
It might well be. But there is nothing in the Policy Governance model that prevents individual board members from helping staff unless the staff do not want it. As long as only the board as a body can exercise authority over staff (and then only over the CEO if there is one), then individuals can relate in any way they wish. With this construction, it is obvious that board members cannot foist their advice on staff, but may freely give it if asked. The key is that the mechanism of advice must always be thoroughly under the control of the advisees.