11.   But as this decade moves to its last innings, a subtle shift is occurring.

12.   But in the short term, the subtle shifts that are made by the Fidelity advisers would likely prove beneficial.

13.   But he said women can enhance their approachability with subtle shifts in attitude and behavior.

14.   But something happened last fall, the kind of subtle shift you recognize only in retrospect.

15.   Can he provide a subtle shift in tempo?

16.   Data are to be collected for decades, in theory revealing subtle ecological shifts that might otherwise be missed.

17.   Diplomatic activity in Israel has been accompanied by subtle shifts in the rhetoric about the war on terror.

18.   From inland Maine to northern California, this time of year is marked not just by subtle shifts in the landscape but by jarring alterations in the psychic weather.

19.   He, too, has noticed the subtle shift in the atmosphere.

20.   In a subtle shift of workplace politics, they have become the people whose affection smart colleagues are going to great lengths to win.