After running numerous computer v. computer matchups in Madden football (at various coaching settings), statistical averages from the video games were compared to real NFL averages. For example, total points were 4.4% lower in the computer games; there were 11.3% fewer interceptions, but 10.4% more fumbles. Based on his analysis, the author concludes that the game-play is not realistic enough.
The majority of the post is actually a rant about the abundance of advertising in this particular video game. By that measure, I’d say the game is very realistic.