Not too difficult to follow at all... He was saying the team needs to have a depth chart, and players need to know where they stand on a week-to-week basis. They need to get the necessary reps in practice as well as gameday reps, and they need to have a relationship with the coaches as well as their teammates on the field -- to the point that everyone knows what the other is thinking and how they are going to react in certain situations. It's a lot like lines in hockey, where players get used to one another over time and instinctively know each other's moves.
If someone wants to move up the depth chart, they have to prove it in practice, but more importantly, they have to prove it in games. I am not down on Coach Collins yet, but Coach Johnson was much better suited for coaching a "less talented" group of players, not just because of his schemes, but also because of his discipline. Regardless of the prevailing social climate, young football players usually respond better to discipline than hand-holding or hugging. They respect disciplinarian coaches more and are challenged to prove themselves in practice. Players who do not possess the size, strength or skill of their opponents need a much more disciplined approach to the game to be competitive.
The Citadel has had a rough start thus far, but they've been very good in recent years in their own division, and that school is all about discipline. I think because of their discipline, they were in a position to take advantage of all Tech's mistakes yesterday.