They do teach money mgmt but if you check October all the indices tanked and so did the stocks. His way of diversification was to pick 10 different indices and stocks but they all tanked with the crash and the volitility set record highs so you couldn't really adjust in time to get out of them. the mistake that was made was we shouldn't have been trading credit spreads with volitility over 30 but they never told us to stay out of the mkt