The 2-minute offense is what it is.. it takes advantage of the defense playing a zone-prevent d to keep a big play from happening before the end of the half/game. It relies on making quick side-line throws for about 5-6 yards.
The reason we look so good running it is that we know exactly which plays (very limited) we will run, and if the D is playing zone prevent.. our QB and receivers are just playing catch out there.
This would NOT work as an overall gameplan, because there are two few plays we can run and the defense isn't just going to sit back in a zone the whole game while we complete 80% of our passes for 5-6 yards a pop. Though it could work at other points besides last 2 minutes of each half. Any situation where we want to try and get a score without taking much time off the clock we could use this from time to time if they stay in zone d.
And though playing the 2-minute too much won't work I would like to see some more sideline passes when the D is in zone coverage. And would like to see some more deep slants when they're in man coverage.
What you have with the Giants and the Colts are, well besides being brothers, they are good at reading defenses and calling the plays at the line of scrimmage (they have the benefeit of a headset in their helmets so the coach can call in the playset), so they don't need to huddle. This is HUGE because it doesn't allow the defense to rotate fresh players in. Anyway, those guys look like they're running the 2-minute offense the whole game.. and then when you see them actually run a 2-minute offense.. it's crazy! You sneeze and they've ran 3 plays for 20 yards, lol.