If you're a defensive coach looking to develop outside linebackers who play fast, aggressive, and intelligently, you're going to need to check out Maryland Outside Linebackers Coach James Thomas' pre-snap thought process video below.
The video is a portion of his online Glazier Drive Clinic: Outside Linebacker Pre-Snap Thought Process.
You can access more of his process for coaching outside linebackers below the video.
To eliminate mistakes, we must control what we can control, and maintain a high degree of concentration throughout each play. 
Defenses that make things happen will eliminate a lot of mistakes on their side of the football.
In order to MAKE things happen, we must:
🏈Be fundamentally sound 
🏈React fast 
🏈Be a student of the game 
🏈Be leaders 
🏈Create winning habits 
🏈Communicate 
🏈Be mentally and physically tough
🏈Be playmakers
🏈See Ball Run 
🏈Eliminate wasted movement 
🏈Play as a unit 
🏈Be disciplined