And coaches will tell you that the preseason is for the young players. There are limited 11-on-11 snaps in training camp, and even then, very little hitting is allowed. The preseason is still the closest thing you get to regular-season games.
If the preseason is unimportant in the development of players then why would McCarthy say this about Lance: "Young quarterbacks need reps, and we're trying to get him as many reps as we can throughout this offseason program," McCarthy added. "He will take a large part of the preseason, and that's the design. Him and I talk about preseason quite often because that's what we're building towards."