A lot changed for the Calgary Flames this offseason, but there are two things that will determine if they really are a better team this year: goaltending and coaching.
The goaltending side is simple.
The coaching side is a bit more complicated. New bench bosses Glen Gulutzan and Paul Jerrard have very clear areas of the game they need to improve in Bob Hartley's wake, including some individual tactics that were lacking under the previous regime.
Here are the areas I'll be grading the new coaching staff on this year.
Team-wide
Even strength shot differentials
Between 2013 and 2016, the Flames had the third worst shot attempt ratio in the entire NHL at 46.