Draw or don't draw whatever conclusions you want to, I'm just posting the shot charts (5 on 5)
Peters' 2017-18 Hurricanes(19th in 5v5 goals):
Peters' 2016-17 Hurricanes(16th in 5v5 goals):
Peters' 2015-16 Hurricanes(22nd in 5v5 goals):
Ruff's 2016-17 Stars (15th in 5v5 goals):
Ruff's 2015-16 Stars (2nd in 5v5 goals):
Ruff's 2014-15 Stars (3rd in 5v5 goals)
Ruff's 2013-14 Stars (5th in 5v5 goals)
Vigneult's 2017-18 Rangers (22nd in 5v5 goals)
Vigneult's 2016-17 Rangers (7th in 5v5 goals)
Vigneult's 2015-16 Rangers (1st in 5v5 goals)
Vigneult's 2014-15 Rangers (1st in 5v5 goals)
Vigneult's 2013-14 Rangers (17th in 5v5 goals)
Sutter's 2016-17 Kings (28th in 5v5 goals):
Sutter's 2015-16 Kings (28th in 5v5 goals):
Sutter's 2014-15 Kings (9th in 5v5 goals):
Sutter's 2013-14 Kings (27th in 5v5 goals):
Gulutzan's 2018 Flames(27th in 5v5 goals):
Gulutzan's 2016-17 Flames (21st in 5v5 goals):
Hartley's 2015-16 Flames (8th in 5v5 goals):
Hartley's 2014-15 Flames (12th in 5v5 goals):