The "Five Guys" committee that President Obama authorized, reported back with findings and recommendations. One of them, which that committee felt was the most important one, was to split NSA and US Cyber Command apart. They felt it was dangerous to have one person in charge of both communications security, and in command of their own Army, Navy, and Air Force.
Giving them more authority, especially authority that is already vested in a different agency, is a Yuge mistake.