The many internal studies of Cyber Command’s future over the last five years have taken significant energy. Now that the decision is finally made, the focus will turn to implementation — with dozens of practical questions for the department to answer in the next one to five years. What will Cyber Command look like when fully stood up? How will the relationship evolve between Cyber Command and the regional combatant commands like U.S. Central Command and U.S. Pacific Command? (Cybercom “owns” the cyber forces and has a broad picture of cyber threats around the world, but regional combatant commands are protective of their responsibility and authority in their geographic regions.) When and how will the Defense Department satisfy Congress that it has met the conditions for terminating the dual hat without undermining national security? Above all, will last Friday’s announcement help the United States get further ahead of the expansive threats it faces in cyberspace? The answers to these questions may well be just as important as the decision announced Friday.