The point is that when the current value of stocks (as measured by price to earnings ratio) is dramatically different from historical valuations, then portfolio managers that choose stocks (active management) will do better than those portfolio managers that simply track an index of stocks (passive management). So, does evidence of the above as written by The Boston Company mean that you should sell your index funds and buy actively managed mutual funds? Well, no.
Stick to the game plan you have put in place -- assuming you have a game plan. More on some suggested game plans in the near future. Until then, let us all know if you have a plan and if you are confident about your plan.