The read option requires you read the front to determine who your read is, either NG, 1 technique, 3 technique for inside read. QB gives or keeps off of these guys. He then determines to pitch off of the 5 technique or OLB. On an outside read, determine 5 technique or 7 technique. Now give or keep off of them then determine who to pitch off of, OLB or FS or SS.
As for a pro style, a lot of determining the coverage comes in the pre snap read. He determines the number of safeties, position of the corners (inside position, outside position, press man, 5-8 yds off). These looks will determine a possible zone or man look. Now when the ball is snapped, the QB has 3.5-4 seconds to determine where the ball should go. A QB only wishes he had 8 seconds back there! A lot of passes have a set scheme to them to help in the progression. Play side has a short route, intermediate, and deep route. QB often reads like peek deep, 1 then 2. The backside routes are normally drags (7-8 yds) or digs (15-20 yds) with a post coming from the other backside receiver. Going to the 4th or 5th receiver is often called from the sideline because the booth has seen something during the game or coaches saw it on film and have told the QB, "when we call this, and they show this, hit the post!"
