Increasing work capacity across broad time and modal domains is the primary goal of CrossFit programming. We do this by training with constantly varied, functional movements, performed at high intensity.
One paradigm used to measure the effectiveness of the program is to measure an athletes capability against ten general physical skills. These include: Cardiorespiratory fitness, Stamina, Strength, Flexibility, Power, Speed, Coordination, Agility, Balance, and Accuracy. An athlete who is balanced over all ten of these attributes is more capable to deal with whatever physical challenges that life may demand.
While all of these are important to overall fitness, I would argue that increasing absolute strength should be a primary goal of training because of its effect on all of the other fitness attributes. As strength increases, the ability to perform any given task becomes more efficient. There is a big difference in the work relative work out put during Fran if and athlete’s 1RM thruster is 135lbs vs if it is 185lbs. As an athlete gets stronger, they can perform the same amount of work at a lower relative intensity.
Here is a great article by Mark Rippetoe. Check it out and let us know what you think!