The Packers will be making a change to a 4-3 defense next season and everyone is racing to Twitter to talk about how much it doesn't matter in the modern NFL whether a team uses a 4-3 or a 3-4 because they're in nickel all the time. I don't really think that's accurate anymore. Sure, the peak McVay Rams ran 11 personnel every play and today most teams run a lot of 11 personnel, but teams are moving away from that sort of static offense. The Packers, for example, were in 11 personnel (one tight end and one running back) on 63% of plays last season, according to Sumer Sports.