Excuse me for not being clear.
The financial literacy leader is appointed as one person under the authority of the Governor in Council. That one person may exercise his or her functions in accordance with the act, so at any given point you can trace the authority and trace what he or she may consider necessary back to the act.
When you have language that is phrased in the passive voice, in this case “considered necessary” rather than “he or she considers it necessary”, it's not at all clear who considers it necessary or by what measure that necessity is determined or considered, which is why, to the extent possible, drafting tends to concentrate on ensuring that a single person who is appointed, or a single entity who is appointed, is held accountable for decisions and for determinations on necessity, in accordance with the statutory instrument.