Is there really any point in me answering something that you won't understand anyway?
Not your version of 'math' anyway...
Numbers are your friend until they tell you what you don't want to hear, like Darren McFadden is a bust or that Doug Free isn't terrible. Then they're worthless.
If a player gave up 4 sacks in 8 games that is a rate 0.5 sacks per game. If that rate is applied to 16 games, then it would be 8 sacks. Free gave up sacks at a rate of 5.5/11 (.5 sacks per game). Tyron gave up sacks at a rate of 4/16 (0.25 sacks per game).
Doug Free either gave up 5.5 sacks or he gave up 8. Projections are worthless and a waste of keystrokes.
If Free is cut after this year, it is a 1 year, 6M contract. The fact that they only paid about half of that this season if not relevant to how much it actually costs to keep him. His average would be 5M per if they keep him all 3 years of his contract or they pay him 6M for 1 year. Dead money is just a function of how the team manages the cap. It is not an indicator of the actual cost of the player. The cost for Free will be 6M if he only plays 1 year.
Dead money is dead money. As long as there is a salary cap it's relevant.
If Free were to only play one year, the cost would be $6 million, but the team would be allocating $3 million for a player whose services they would no longer have.
If you're mentioning the scenario, I think it's important to mention all factors involved.