Well, a quick way from cover 2 is to show blitz, but mostly plays that automatically do it. Like show 4 cover 2 and 3 buzz press.
3 buzz press is a GREAT play against a human player that thinks he's reading my coverages right. I just got 3 picks with that play and made my opponent quit. It's also solid against the run, as it has two guys coming DOWN to the flats, so their momentum and speed allows them to shed blockers on the outside. I little think up the middle, but I just move my 3 technique to a 2 and user him.