Perry just displayed his ignorance. The EPA works at the whim of a cabal between agency personnel and green NGOS. The latter subsist off the donations of tax-exempt "charitable" corporate foundations (you know, the guys who give Perry money). They operate under the "authority" of the Federal courts, which ORDER the agencies the implement the NGO plan.
Hence, Perry will be able to do very little without defying said court orders, which is of course not mentioned in his plan.
Congress can defund the EPA. Can’t do much with say 5 employees. If the Republicans have control of both houses and President, this will happen.