I remember a coach referring to a phase of the weight training program as “general muscle and connective tissue integrity development”. While it is a mouthful, it does make some sense. Building up the body for the stresses of training is an important part of the general preparatory phase. And, maintaining this foundation of strength through the season is also important. If you go too far away from it (i.e. drop it entirely from the program), you will lose these qualities. Charlie’s whole program of Vertical Integration (raising or lowering the volume of specific components - but not eliminating them) addresses this issue very well.