In a clear sign that Wells Fargo & Co. executives will dominate after the merger with First Interstate Bancorp, two top-level Interstate executives have said they will leave when the deal is completed this spring, a First Interstate spokeswoman said.

The departing executives, Linnet F. Deily, 50, head of retail banking, and Bruce G. Willison, 47, head of wholesale banking, had been seen as the most likely of First Interstate's senior executives to stay after the merger.

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