Hoover could not bring himself to adopting a view of the govt as an employer of last resort, which was FDR's most extreme belief.
We've been through this time and time again, but Friedman proved conclusively, or at least to the point that no economist seriously disagrees, that the reason why responses to the great depression failed, unless free markets were removed and govt nationalized entire economies, was the gold standard. Or to be more pricise, because the way the gold standard was internationally applied was that when country A's currency lost value, gold whet from there, to country B whose currency appreciated as compared to country A's currency. In theory, this was supposed to cause country B to increase money supply.
However, in 1929-30, the Fed did not increase money supply. It did the opposite. This actually fueled deflation, and ushered in the Great Depression that only ended when the entire world's industrial economies were nationalized.
That was Friedman's magnus opus. The Austrians would argue something about markets, but that's about the cure to the Great Depression, not the cause. Monatarism was never applied to the Great Depression. It worked in 1982 and thus far in 2006.