It adds-up as very possible. Look at his last 5 year’s career placement. From wiki;

“Paul Miki Nakasone is a four-star general in the United States Army who serves as the Commander of United States Cyber Command. He serves concurrently as the Director of the National Security Agency and as Chief of the Central Security Service. Nakasone took command of the United States Second Army and Cyber Command in October 2016, until the Second Army's inactivation in March 2017. In May 2018, he became head of the National Security Agency, the Central Security Service and the United States Cyber Command”.

Edit; “Took command of Cyber Command in Oct 2016”... hhmmm.