“We’ve got to keep our poise and he’s well aware of that and knows that,” McDermott said of Bills coordinator Ken Dorsey. In our highly unofficial survey of Bills Mafia, nobody is really asking for an apology from Buffalo Bills offensive coordinator Ken Dorsey for his violent meltdown executed toward the end of his team’s 21-19 loss at Miami Dolphins on Sunday. But Dorsey would still like to explain. And to sort-of apologize. “It was a playoff atmosphere,” Dorsey said in review of his action, caught by the CBS cameras during the telecast. “Obviously we weren’t on the winning end…