Film evaluation used to be an insider’s game. Only players and coaches had the resources to see the field with all 22 players, rewinding and rewatching each matchup again and again on every play. Even 20 years ago, ESPN spent only a half hour each week on film study, usually early in the morning on a weekend, with Merril Hoge and Jaws watching the games with a perspective unlike anybody else. Today, film evaluation is more and more part of the fan’s lexicon. All-22 film is available for anyone willing to pay for NFL+. Social media is littered with armchair coordinators, and sometimes no two people can agree on exactly what they’re seeing.