(c)
In administering the provisions of this chapter—
(1)
with respect to any agency (as defined in section
2302
(a)(2)(C) of this title), the President shall, pursuant to the authority otherwise available under this title, take any action, including the issuance of rules, regulations, or directives; and
(2)
with respect to any entity in the executive branch which is not such an agency or part of such an agency, the head of such entity shall, pursuant to authority otherwise available, take any action, including the issuance of rules, regulations, or directives;
which is consistent with the provisions of this title and which the President or the head, as the case may be, determines is necessary to ensure that personnel management is based on and embodies the merit system principles.