Does an editor-in-chief have to be a control freak?

If an Editor-in-Chief takes responsibility for all aspects of her content creation, can she ever relinquish control? People want control when they're emotionally attached to outcomes; they want a final result to align with their preferences and therefore (desperately) attempt to shape a situation in their favor. However, do strict preferences create the most productive work environment and maximize your chances of creating your best work?...