Another useless stat that means absolutely nothing. The media now days needs to have these to fill the tv / radio slots, internet sites / blogs. Or else what would they over analyze. Do you ever hear them say any positive stats when they bring this up, probably not.
Sacks, which is useful, weren't kept as an official stat until 1983 or somewhere around there. If you go back through time, Deacon jones claims he's the real all time sack leader [would be hard to argue against that]. If you could go back and look at the stats, see what thes stats are, it could be amazing. Now not every game has film, or records these, but would the stats themselves show it. Wouldn't be recorded as a sack, but a tackle for a loss, on a running play by a QB.
So if you could go back and look at many other QB's throughout history, what's their record in "win or go home games', then compare. And an easier stat to find than sacks.
How many times Vikings lose the SB, playoff games, and wasn't Tarkington the QB, how about Roman Gabriel with the Rams. Even our own Danny White.
Pick most any QB, I'm sure you can say a higher % fall right in there with Romo, and only a small % that don't.