If it's true that Alan Greenspann was considered an Austrian Economist, why triple the debt with quantitavive?

easing just like his Successor Bernanke is doing right now and at a much reduced rate. Why is it okay for Greenspan to do exactly the opposite of Laisezz Faire Government policies with business and get credit for it?? a href="http://search.yahoo.com/search?p=greenspan+and+austrian+economics&ei=utf-8&fr=b1ie7"http://search.yahoo.com/search?p=greensp…/a