Why you think the post is so important. It was the first Ministry to have 2 Perm Sec will clear lines of responsibilities and they were there from the 70s.
Monetary / Fiscal Policy Failure - this one is real easy - driving demand and keeping the GDP growth targets intact by allowing the foreigners to come in. When you increase population, you your economy will grow as demand shoots up. Supply cannot keep up and prices rise. Owners of private properties especially rentals will laugh all the way to the bank. Businessmen boom time as they increase price to handle the demand without adding more costs. But the rest of country suffers.
Why did you think they increased the population so much and proposed to increase even more - it cannot be because we got so much space like Australia and Canada to exploit. It was not because they wanted to help the Pinoys and Indians and reduce poverty in their home country.