This is efficiency, the first, and effectiveness, the second. One has no meaning to exist, if the other is not achieved; and efficiency, although it could make sense by itself (in the case of a hospital emergency room), when not accompanied by the first, it can trigger costs and distort the result.
So, management is the proper balance of method and results, effort and achievement, efficiency and effectiveness.
Managing also means anticipating. That is, to be able to foresee the flow of operations, and procure the corresponding resources.