Panera's lead ad agency quits

Panera Bread Co.'s lead ad agency, Chicago-based Cramer-Krasselt, has resigned after two years with the company, according to the St. Louis Business Journal.

An internal company memo obtained by Advertising Age cites reasons such as "constant last-minute shifts in direction, behind-the-scenes politics and enormous levels of subjectivity that disregard proof of performance" as reasons for dropping the account.

The agency picked up the Panera account in May 2012.

Read more from the St. Louis Business Journal.