Many NFL enthusiasts downplay the importance of pre-season football. However, I disagree on certain levels.
Fundamentals are the building blocks, blue-prints, and the bones of an NFL team.
For instance, on the offensive side of the ball, if a team does not score in pre-season, it's probably because most teams don't "let all the tricks out of the bag."
Fundamentals, technique, and execution are the purposes, and what most coaches evaluate in training camp and pre-season.
The reason for film study, at a grassroots level, is to examine technique and fundamentals. Based on my observation, the following are things that the Raiders did well on against the Dallas Cowboys.