Landmarks for inside zone/stretch plays

Brian for the stretch set the back at the same level as the QB with his inside foot over the outside foot of the guard. On the snap of the ball have him drop step with his inside foot with his running path at the outside hip of the guard far side, crossing over the in front of the QB (this is stretch). For Inside zone have the RB dropstep with playside foot and then have him square his shoulders to the LOS and don't cross the QB as he takes the back through his ride (this is inside). Coach CAmpbell

Coach Campbell,

Can you please elaborate on your RB's footwork running the zone? I am a little confused on the terminology your using "For Inside zone have the RB dropstep with playside foot and then have him square his shoulders to the LOS and don't cross the QB as he takes the back through his ride" as well as him squaring his shoulders at the QB.

Is the QB taking the ball to him? How can the RB square his shoulders to the LOS prior to receiving the ball?

Thanks..