This is interesting. And note, I'm saying interesting and not conclusive. There's a lot of context not accounted for here, but it's not worthless either.
Gase:
- Denver:
- 2012 (Pre-Gase): 22.1% Offensive DVOA; 30.1 PPG
- 2013 (Gase): 33.7% Offensive DVOA; 37.9 PPG
- Difference: +11.6% DVOA; + 7.8 PPG
- 2014 (Gase): 19.9% Offensive DVOA; 30.1 PPG
- 2015 (Post-Gase): -8.8% Offensive DVOA; 22.2 PPG
- Difference: -28.7% DVOA; -7.9 PPG
- Chicago:
- 2014 (Pre-Gase): 0.0% Off. DVOA; 19.9 PPG
- 2015 (Gase): 6.8% Off. DVOA; 20.9 PPG
- Difference: +6.8% DVOA; +1 PPG
- 2016 (Post-Gase): -2.6%; 17.4 PPG
- Difference: -9.4% DVOA; -3.5 PPG
- Miami:
- 2015 (Pre-Gase): -7.3% Off. DVOA; 19.4 PPG
- 2016 (Gase): 6.9% Off. DVOA; 22.7 PPG
- Difference: +14.2%; +3.3 PPG
Everywhere that Gase has gone, he's immediately improved the offensive success in both DVOA and points, and in both instances that Gase has departed a given team as OC, they've gotten worse in both categories.
McDaniels:
- New England:
- 2005 (Pre-McD): 15.2% Off. DVOA; 23.7 PPG
- 2006 (McD): 12.2% Off. DVOA; 24.1 PPG
- Difference: -3% DVOA; +.4 PPG
- 2008 (McD): 14.6% Off. DVOA; 25.6 PPG
- 2009 (Post-McD): 26.4% Off. DVOA; 26.7 PPG
- Difference: +12% DVOA; +1.1 PPG
- 2011 (Pre-McD): 17.9% Off. DVOA; 32.1 PPG
- 2012 (McD): 30.8% Off. DVOA; 34.8 PPG
- Difference: +12.9% DVOA; +2.7 PPG
- Denver:
- 2008 (Pre-McD): 21% Off. DVOA; 23.1 PPG
- 2009 (McD): 1.3% Off. DVOA; 20.4 PPG
- Difference: -19.7% DVOA; -2.7 PPG
- 2010 (McD): 6.2% Off. DVOA; 21.5 PPG
- 2011 (Post-McD): -5.1% Off. DVOA; 19.3 PPG
- Difference: -11.3% DVOA; -2.2 PPG
- St. Lous:
- 2010 (Pre-McD): -15.2% Off. DVOA; 18.1 PPG
- 2011 (McD): -22.8% Off. DVOA; 12.1 PPG
- Difference: -7.6% DVOA; -6 PPG
- 2012 (Post-McD): -4.7 Off. DVOA; 18.7 PPG
- Difference: +18.1% DVOA; +6.6 PPG
It's much more of a mixed bag for McDaniels. His first go around in NE, there was virtually no change before and after, however they improved dramatically in DVOA after he left. They got a lot worse when he showed up in Denver, but also worse after he left in Denver. They got much worse when he took over in STL and much better after he left. And yet they improved when he came back to New England.