The distance from the blue line to the boards behind the goal is 75 feet; from side-to-side, another 85 feet of ice. Managed properly in an attacking situation, the offensive zone can become a dangerous place to spend time for any team. But managed improperly, offensive possession -- even nearly 200 feet away from a team's own goal -- can create a dangerous turnover and a quick opportunity against.
It's one thing to play conservative hockey. It's another entirely to play efficient hockey within a system that can mitigate the danger of making mistakes. The Chicago Blackhawks and St. Louis Blues are two teams that can generate offense from their blue lines, but do so in a way that should they turn the puck over they're not at risk of becoming the victim of a quick counterpunch.