Progression, in a weight training routine, simply means that as you get stronger you need to continue to challenge your muscles in new ways, in order to continue making progress. There’s no magical “Progression Strategy” that is going to be more effective than you simply pushing yourself out of your comfort zone each and every workout. Changes in muscle strength and size come from adaptations, made by your body when it is forced to do more than it is used to doing. The rule is this: If you always do what you can always do, then you will always remain the same. In other words, your body isn’t going to build muscle if you keep lifting the same amount of weight every time you workout. The lesson here is that much of the progression in a routine comes from your effort and intensity, more than it is from the types of exercises that you are doing. With that being said, introducing new exercises is important and that’s why throughout the TA2 program new exercises are brought in to challenge you, and maximize progress over the entire 12-weeks.