For all its flaws, the Japanese system of job rotation and company-specific training provided its firms with some advantages over western rivals.

ECONOMIST: Sayonara, sarariman

If multiple news organizations decide to participate and providing answers to all the questions becomes too much of a workload, Toiv said a rotation system might have to be developed.

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The rotation system meant that after Colombia dropped out of the 2014 race, Brazil was left as the sole candidate -- a situation FIFA president Sepp Blatter wanted to avoid in the future.

CNN: FIFA end World Cup rotation policy

After his goalscoring exploits last season, Bellion has featured slightly less frequently this term, thanks to Blanc's squad-rotation system, but he is content with life on the Garonne river and feels his maturity off the pitch is reflected by his play on it.

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The defence ministry says that to sustain a long-term operation, with a proper rotation system, it ideally likes to have at its disposal three or four ships or aircraft, and up to five army units, for every one deployed at any given time.

ECONOMIST: The army

He is unlikely to stand in next year's election because of the ruling party's unofficial rotation system: Mr Jonathan is from the Christian south and it will be the Muslim north's turn to nominate a candidate to serve out the once-expected second term of Mr Yar'Adua's presidency.

ECONOMIST: A surprisingly brisk presidential broom

They also will choose the remaining three sites for the six-bowl semifinal rotation in the new system and the site of the first championship game to be held Jan. 12, 2015, this week.

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The system should not produce a slew of tornadoes, since there is not a lot of cloud rotation, Cabrera said.

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