Business reengineering holds great promise for companies by changing the way they do business and breaking down outdated assumptions and rules. But unless management gives information systems a prominent role in the reengineering project, the effort will be doomed to failure. The author traces a reengineering effort at Breezy Services Company, showing where management went wrong in ignoring IS’s vital participation. He presents five steps toward better reengineering by assigning IS the tasks of project management and technical vision and leadership. Only by working together can business and IS managers ensure a successful reorganization of their company.