As a DE, how do you diagnose a screen? "This tackle let me beat him too easily, I'm not this good, must be a screen."I hear you. The very first screen I believe it was, Greenard ran right past everybody. You could see the screen coming. I think he was just so excited to be rushing the QB he forgot about the screen developing.
But seriously, how do you? I remember Clowney was so good at recognizing screens and would cover the RB. The play is basically dead at that point.