sc.judiciary.gov.ph/jurisprudence/2012/july2012/196425.pdf
"x x x.
A valid reorganization must not only be exercised through legitimate authority but must also be pursued in good faith. A reorganization is said to be carried out in good faith if it is done for purposes of economy and efficiency.
It appears in this case that the streamlining of functions within the Office of the President Proper was pursued with such purposes in mind.
In its Whereas clauses, E.O. 13 cites as bases for the reorganization the policy dictates of eradicating corruption in the government and promoting economy and efficiency in the bureaucracy. Indeed, the economical effects of the reorganization is shown by the fact that while Congress had initially appropriated P22 Million for the PAGC's operation in the 2010 annual budget, no separate or added funding of such a considerable amount was ever required after the transfer of the PAGC functions to the IAD-ODESLA. Apparently, the budgetary requirements that the IAD-ODESLA needed to discharge its functions and maintain its personnel would be sourced from the following year's appropriation for the President's Offices under the General Appropriations Act of 2011.
Petitioner asseverates, however, that since Congress did not indicate the manner by which the
appropriation for the Office of the President was to be distributed, taking therefrom the operational funds of the IAD-ODESLA would amount to an illegal appropriation by the President. The contention is without legal basis.
x x x."