As David Sullivan flirts with replacements, Potter takes on the only manager who really worked the chairman out … David Moyes As David Sullivan flirts with replacements, Potter takes on the only manager who really worked the chairman out … David Moyes G raham Potter finds himself in a position familiar to many of his predecessors. This is not the first time David Sullivan’s lack of vision has led to West Ham dragging out a managerial departure. It is dressed up as loyalty but in reality it is