The size of operation will not simply provide the answer either.

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McEVERS: Over time, the Brauers did well and eventually doubled the size of their operation.

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Since 2003 British Airways, led by Chief Executive William "Willie" Walsh , has shut large call centers in London, Glasgow and Toronto, though even with those closures, there was still "too much property for the size of our operation, " according to George.

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