Conversion of ideas into action is important as Mahatma Gandhi pointed out, that “action expresses our priorities”. However, let me add that it is hard to convert thoughts into reality. The French novelist, Honour de Balzac once said “it is easy to sit up and take notice, what is difficult is getting up and taking action”.
There were different outcomes depending on the nature of the interaction between the central bank and the government (in game theoretic terms, it depended on which was the Stackelberg leader or whether it was a Nash solution). But fiscal policy did play an important role in demand management. Monetary policy was not the only game in town.