kfc is the second biggest chicken chain by us sales behind chickfila rising interest rates are adding to companies’ borrowing costs and triggering higher creditcard bills for consumers at kfc they are driving a turnover in senior management the louisville kybased brand’s us chief operating officer chief financial officer and national field operations director have all notified yum brands kfc’s parent that they will leave the chicken chain at the end of next month according to company messages viewed by the wall street journal