‘“We’ve been trying to work on it since Day 1, knowing it’s been something that we need to improve,” Sabres coach Lindy Ruff said. “There’s been some structure change to it. (Conor) Timmins has been a big acquisition for the kill. Our stand at the (blue) line the other night was excellent; we didn’t give them a lot of easy entries. (Mattias) Samuelsson has been so good when they’re coming down his side. (Jordan) Greenway back has helped us out.”’