11.   By tradition, the president addresses the graduates at one of the four military academies each year, on a rotating basis.

12.   Currently, floor traders may submit buy and sell orders only on individual stocks that are updated on a rotating basis.

13.   Eight breeds of hunting dogs will be benched on a rotating basis throughout the show.

14.   Gilligan instituted a plan of one-game suspensions of all players, on a rotating basis, along with probationary status and other sanctions.

15.   GNC said cuts it will begin cutting prices on a rotating basis in September.

16.   In an earlier collective bargaining agreement, umpires were chosen strictly on a rotating basis.

17.   In each major aviation accident, one of the five members takes charge of the inquiry on a rotating basis.

18.   In previous seasons, the sites of the series were pre-determined by division on a rotating basis.

19.   Instead, the bowls will choose their participants on a rotating basis.

20.   Instead, Thomas shared the backfield duties on a rotating basis and never materialized as the threat the Jets thought he would.