J Studios/DigitalVision via Getty Images Portfolio managers have to anticipate a variety of scenarios and allocate portfolios accordingly. The aggressive way to do this is to decide which future scenario is most likely, and then invest in whatever does best in that scenario. However, history has shown that even the best minds struggle to consistently anticipate how the future will play out. As such, most portfolio managers, me included, will hedge their bets a bit. Perhaps go a bit overweight in the dir ...