And the company is talking about doing something similar as it changes its compensation structure for its salespeople.

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Some analysts cited the bond's aggressive structure as a major reason for its decline.

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As for the emerging economies, China is on the cusp of significant changes in its financial structure.

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Even the UAW accepted a two-tier pay structure in its latest negotiations as well as swapping guaranteed pension benefits for a 401(k) for new members.

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Taken together, you can infer that the ETF structure, as currently concieved, could run into operational hiccups when an active strategy get too big for its britches.

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