Plan your season before planning your practice.
To steal a phrase from Stephen Covey’s 7 Habits book: Begin with the end in mind. I have been doing this with my team for many years but I never really had a title for it.
Envision your team at mid-season. Think this through thoroughly. What plays you want to be running at that point and the players’ thorough knowledge of it. What defense do you think you’ll be running? The mental and physical toughness you want your team to have. The hustle you expect at that point. The conditioning level you want to be at. Now with that mental picture in mind, start writing.