21.   His position becomes redundant with the appointment of Yousuf as vice chief.

22.   If he fails, his position will become untenable.

23.   It also said some positions became redundant because of resources available from Gannett.

24.   So far, Green has played abysmally and the position has become a weakness.

25.   The position became open when Leningrad region Gov. Vadim Gustov was appointed deputy premier of Russia.

26.   The position became open when Carlos Juarez resigned in December to become coach of the San Diego Spirit of the Womens United Soccer Association.

27.   The position became vacant following the resignation of Max Willis last week.

28.   Under Bush, the position became that of lead liaison on border and Mexican affairs.

29.   He was appointed to carry out liaison between the US force and his father, but was sent back to the United States when his position became untenable.

30.   He was appointed to conduct liaison between his father and the US troops but was eventually sent back to the United States when his position became politically untenable.