The NFL made a splash during Sunday's Hall of Fame game by allowing coaches to use sideline tablets to study images of pre-snap and in-game play.
The technological leap didn't come without its share of glitches.
Marrone said his Microsoft Surface kicked into action during the second half and he "liked it a lot."
Teams -- and the NFL's more old-school coaches -- still have the option to study game play on printed-out images, but the tablets allow for immediate access to downloaded images.
The tablets don't allow players or coaches to surf the web or tweet in-game nonsense, meaning those of you breathlessly waiting for that Andy Dalton sideline selfie remain wholly out of luck.