Coaches tweet. Coaches watch film. Coaches, however, do not regularly combine the two. Except for Penn State offensive line coach Herb Hand. Hand is one of the most active college football coaches on Twitter, so it should come as no surprise that Hand would start tweeting out his evaluation of the previous game's film.
This is a good practice to do for coaches who are so inclined, especially for offensive line coaches. You'll notice Hand only tweets clips of good plays. It's a way to give his guys a public pat on the back, and it's especially important at a position at offensive line where good plays go unnoticed by the average fan. And speaking of the average fan, the Internet has helped turn many of them into amateur Xs and Os junkies. This helps those fans feel like they're getting a leg up on the dude in the next cubicle over.