1.   As the girls began to show potential, Mrs. Tu switched roles with her husband.

2.   At bottom is a performance in which the two actors switch roles.

3.   A few days later, after they switched roles, the whole operation made far more sense.

4.   After acting in his first big-budget music video, Rothenberg switched roles, to director.

5.   But even if the Justice Department suddenly went limp, the states who are joint parties to the suit could switch roles and carry on.

6.   But on television last week, the two men switched roles.

7.   But since switching roles with Lindsey Hunter to anchor the second unit in late January, Fisher has settled into a happy rhythm again.

8.   Economic thinkers have switched roles, too.

9.   Everybody has switched roles.

10.   Following the Kings loss, Wesley asked a reporter if the roles could be switched.