You can relate this to racing cars: if you can hit a lap, or section of a track in a certain amount of time, then your odds of winning that race go higher when you fix the smaller details like approach angles and speeds into turns, brake pressure and all that. In other words, if I'm racing and if I can set a goal to come out of turns 1-4 at an extra 4mph than I was before, then I'll get that much more time. And if I can finish laps an extra .25sec faster, that's all the better. If my pit guys can shave a second or two off their time, then great. You add all that together, and that can mean the difference between 1st and 5th place finishes. This definitely fits into coaching goals for a football team. Or you know, as was said in Any Given Sunday- you fight for every inch and that can make up the difference between winning and losing.