Here's an inside look at Oregon's read option attack. The Ducks thrive on putting defenses in tough positions and then forcing them to make quick decisions.
The unique part of Oregon's attack is when they try to isolate the defensive tackle instead of optioning off the end man on the D-line.
Why does Oregon do that?
I think they're forcing a player who is unaccustomed to reading the option to make decisions on the fly. Most of the time a D-tackle's job is to plug holes or get to the QB.
There's very little intense "decision making" going on deep in the trenches. The Ducks are forcing every player on the defense to be accountable for stopping their attack.
If they catch someone sleepin', they're off to the races!