The having of power does not entail the exercise of power. The fact you can switch a light on does not mean you will. The fact that you do not turn the light on and sit in the dark does not mean you do not have the power to turn the light on.
The having of power does not preclude the delegation of power. Delegated power is an extension not a relinquishment and transfer. If a board of directors delegates power to a particular director to take a certain action, it has not lost its power, it is merely exercising its power indirectly rather than directly, through the director.
If the director takes that action, the action is taken in the exercise of delegated power. That exercise is merely a form in which the holder of ultimate power, the board of directors, is acting. When he for example signs on behalf of the company, the company, not he, is bound: he is merely the hand by which the company is bound.
The power to act is circumscribed by defined authority, namely the scope within which that power is to be exercised.
If he does not take the action indicated or takes contrary action, the ultimate power of the board of directors is unimpaired by this. His authority can be revoked: ultimate power can be reasserted at any time. Any action he takes outside the scope of his authority is incapable of binding the board of directors: he is acting 'on a frolic of his own', and such action is the essentially the exercise of stolen power. Power is not a finite resource, however, and the use of that power does not diminish the potential and actual power of the ultimate holder of that power, which is infinite. Infinity plus one is infinity. Infinity minus one is infinity.
The Big Book refers to God as having 'all power'. Some readers infer from this that we have no power. This would be true only if power could not be or is not actually delegated. The fact I can eat an apple, throw the apple at someone, or bury it to produce an apple tree indicates quite well I do have power. What is entailed by the statement that God has all power plus the fact I can eat an apple is that the power I have must be delegated power.
Free will is the exercise of delegated power.