‘In the past, Modrak has interviewed for openings with Atlanta and Chicago. But he has often said he’s content staying in Buffalo and assisting longtime friend Tom Donahoe. This season’s disappointing 6-10 record that culminated with the firing of coach Gregg Williams on Monday has left a taste of unfinished business in Modrak’s mouth. “Absolutely. It’s my only focus, really, as it’s been said a hundred times,” he said.’