I'll try to go step by step.
Games are decided by points.
Teams that score a lot and give up few are good.
This is where it gets confusing.
You might play teams that are good or bad.
So how much you score and allow to be scored can change based on how good your competition is.
If you play lots of games, you can add up all those "numbers" and divide them by how many times you played. This tells how you did on average.
Computers can adjust that margin up or down based on the averages of the teams you played.
Wow what a mouthful
But what's great about using facts instead of emotions is you can compare coaches who played different schedules
Now there is a downside to using facts. Some people don't like facts. Facts make them sad if they have already decided what they want to believe is true. Often times sad people in this predicament will, as very uncouth rude people might say, throw shart against the wall
This sadness can lead people to think that there was a huge difference in facilities between 2009 and 2015 where it would be only reasonable to expect far better average adjusted scoring margins.
I see a trend where the end of Pasqualoni's tenure looks pretty similar to Marrone/Shafer/Babers on average with a 4 year debacle in between. I had big hopes for babers and it's hard for me to admit he's average. It really hurts my feelings. But here i am admitting he's average because I try not be a baby.
You keep mentioning emotions. There is plenty being said on this board that has nothing to do with emotion. And the facts are great, but if you don't understand what leads to the facts you miss a huge part of the puzzle.
Your mouthful is a lot of sarcasm with little information.
Your "step by step" skips a crapload of steps.
Score more points and win more. Duh
Scoring more points is harder against better teams. Double duh
Why does a team score fewer points than the opponent? What makes an opponent better/worse?
1. Talent? How do we get better talent? Do need to scout better? Do we have trouble landing better prospects? What makes a teenager choose a program? Is it facilities? Is it the coaches? Is it location? Is it NIL? Is it the scheme the player will play in?
2. Scheme? What makes a scheme successful?
3. Execution? Can any scheme be successful if it's not executed well?
4. Player technique? Are players fundamentally sound? Are practices organized to teach the correct fundamentals and make them muscle memory?
5. Player conditioning. Are guys getting stronger? Do they have adequate stamina? Do they have good mobility and stability to minimize injury?
If you run a play and it does not succeed, is it because our talent was overwhelmed by their talent? Did our guy(s) make a mental mistake? Did our guy(s) do what he was told but that was the wrong thing in this curcumstance? Did their coach call a better play than our coach? Are our players getting fatigued?
You love to talk about numbers but you don't ever talk about the nuance behind the numbers. I suspect it's because you don't understand that side of the sport. I admit, my understanding of all those factors is also limited. But at least I don't dismiss their presence with flippant sarcasm.