(CNN) The White House National Security Council is ending the role of cyber coordinator, according to an internal announcement obtained by CNN on Tuesday.

The internal announcement said the elimination of the cyber role, just weeks into the tenure of national security adviser John Bolton, was part of an effort to "streamline authority for National Security Council Senior Directors."

The announcement said the cyber coordinator job would end as Rob Joyce, the latest to hold the post, returned to the National Security Agency.

"With our two Senior Directors for Cybersecurity, cyber coordination is already a core capability," the announcement read. "Eliminating another layer of bureaucracy delivers greater 'decision, activity, secrecy and despatch (sic)' as Alexander Hamilton put it in Federalist Number 70."

The elimination of the cyber coordinator job marked the latest of several changes to the National Security Council since President Donald Trump named Bolton his national security adviser.

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