There is an ongoing three way debate between those who believe the Fed should do more to strengthen the recovery, those who believe that the recovery is strong enough to continue on its own, and those who believe that the economy has been so fundamentally altered by the recession that no amount of stimulus can succeed in pushing unemployment down to pre-crash levels. As usual, they all have it wrong (although some are more wrong than others).
The false conclusions are being made by the likes of bond king Bill Gross, who has suggested that the economic fundamentals have changed. They argue that a "new normal" is now in place that sets an 8% unemployment rate as a floor below which we will never fall. This is absurd. America can once again prosper if we put our trust in first principles and let the free markets work. Unfortunately, that is not happening.