After reviewing the clips submitted by x614x E, it is clear that Raven was taking control of a DT or DE and moving them into coverage on pass plays. This is against the rules. If you are going to control a defensive lineman, you are required to engage in the blocker or pursue the QB, unless it is a designed play call. You are also required to rush 3, which in this case, Raven only had two guys rushing on pass plays.
My decision is to issue a warning and suspension of his top rated DL for a game (Ngata will serve a 1-game suspension). Failure to complete this suspension during his next game will result in a 3 game suspension for Ngata. If Raven fails to meet this suspension, it will result in removal from the league.
Here is my advice to you. Read the rules and follow them. It is that simple. Now that you have been issued a warning for breaking the rules (since I cannot see proof of past offenses and complaints), if another rule is broken, you as the owner will serve a 1 game suspension (you will be Auto Pilot). After that, it will be 3 games Auto Pilot, and then if an offense occurs again, you will be removed from the league.