Larry has a multiple-variable equation that explains “points scored” in a soccer match as a linear function of passing skill, shooting skill and player compatibility. Each of these three variables is ranked on a scale from 1 to 10. As a team improves in one of these three respects, their score will increase. Let’s assume that the equation is precisely: Points Scored = 0.18(Passing Skill)+0.25(Shooting Skill)+0.12(Compatibility). MT United is a new soccer team using Larry’s model to maximize points scored. Should they focus most of their practice on passing, shooting or player compatibility?