make sense of Bank One Corp.'s latest moves to confront a profitability shortfall.

Bank One's share price eked out a gain of 31.25 cents, to $33.1875, after hitting a three-year low the previous day. On Tuesday, after the official market close, Chicago-based Bank One announced the resignation of Richard Vague as head of its credit card subsidiary, and a reshuffling of titles and responsibilities between chairman John B. McCoy and president Verne G. Istock.

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