Progression One
Start in athletic stance
Crossover step to left or right, accelerate for 5-10 yards
Progression Two
Start in athletic stance
Shuffle two times to right or left
Crossover step in opposite direction, accelerate for 5-10 yards
Progression Three
Start in athletic stance
Shuffle two times to right or left
Crossover step in same direction, accelerate for 5-10 yards