The smarter players take advantage of this information, sometimes acting ahead of the traditional technical signals in the direction of the predicted signals and then exiting in the order flow generated by the technical signal.
So I suggest simply following the charts and letting the indicators tell us when the downside momentum and money flow reverses to the upside enough to trigger our next buy signal.
Bullard seems to agree, even though he does suggest the flow rate, or pace, of asset purchases, should be the way for them to signal their intentions to markets.