@orion said: I wasn't referring to the play you posted...but to what I've been seeing as far as passing off defenders, not putting body on body when the numbers match...which is of course overshadowed by the talent level across the line.   For the most part, combos, influence blocks, peels and pass offs are pretty standard.  Callahan is just elite at his job on the field, watching little details per personnel, especially mechanically speaking, and either correcting or working with them.  It's like any job.  Most people know the basics and the intermediate, some even have the advanced.  But a painstaking attention, and the ability to perceive those (small) details, is far more uncommon.       You've had good teachers in your life.  Then you've had great ones where learning from them just "clicks" with you and things make sense.   That's Callahan.