As discussed a few weeks ago, CrossFit aims to help individuals become “fit” by improving across 10 general physical skills: cardiovascular/respiratory endurance, stamina, strength, speed, flexibility, power, coordination, agility, balance, and accuracy.
Coordination, agility, balance, and accuracy require practice.
Cardiovascular/respiratory endurace, stamina, strength, and flexibility require training. That means finding your current one rep max at the deadlift, then working varying reps and sets at a lighter weight to build up additional strength. Training allows us to measure the changes in our bodies for these skills.
The other two, power and speed are the result of both training and practice.