DETROIT--A year after helping engineer one of the most promising mergers in banking history, Eugene A. Miller admits to overshooting both his budget and his timetable for consolidations.

But the new chairman and chief executive of Comerica Inc. vows to endure criticism and stay with his deliberate pace, saying a panicky response would cut long-term benefits from the celebrated merger with Manufacturers National Corp.

Limited Time Offer

Save $400 off your subscription. Special offer ends April 30, 2017.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.