Federal Reserve Chair Janet Yellen, right, arrives for a dinner during the Jackson Hole Economic Policy Symposium at the Jackson Lake Lodge in Grand Teton National Park near Jackson, Wyo. Thursday, Aug. 21, 2014.

Fed Chair Janet Yellen managed to appease doves interested in maintaining easy central bank policy, but gave slight encouragement to hawks who want to see an acknowledgement the Fed would raise rates sooner if necessary.

In what arguably was the most anticipated Fed speech of the summer, Yellen carefully constructed a picture of a still poorly functioning labor market that requires easy Fed policy. But she also said the economy is getting closer to the central bank's objectives, and the Fed is "naturally shifting" to the debate on when to raise rates.