Structuring session plans: GAG methodology vs. linear progression

Like many reading this, I grew up around some great player-centered coaches, but always around ones who prioritized technical skill development over game awareness and tactical IQ. Instead of playing game-realistic activities, we spent a significant amount of time developing isolated technical skills without any link to how those skills could apply to the game itself. Around the time that I started to coach the sport, the likes of the CSA and US Soccer began to make changes that would better facilitate skill development in the context of the game. One of those introductions included what Canada Soccer calls the 'GAG' methodology (game-activity-game), with the pretext of 'let the game be the teacher'.