Problem

It originated within the presidential reorganization plan and was implemented by two executive orders.

NOTE: You would have to capitalize Reorganization Plan No. x if quoting the name of a particular reorganization plan, and you would have to capitalize Executive Order xxxxx if quoting the name of a particular executive order. Also, just as you would not capitalize president unless you were referring to him by his title (e.g., the reorganization plan was the idea of President Obama) presidential is not capitalized.