A few games every week QBR fails and a few it succeeds.
http://www.itsalloverfatman.com/bron...ate-to-winning
QBR is tuned too extreme to 3rd downs and close games. Dalton did well in that and gives credit for PI on a pass for a first down.
And Dalton's 2 INTs were not 3rd or 4th down passes. It makes sense to not count those the same as other INTs.
1 was on a 2nd and 7
1 was on a 1st and 10
Those are friendly to offense situations that Dalton gave away.
QBR is also tuned for the long pass because it doesn't like QBs getting YAC.
Dalton is great because AJ Green runs 3 yards past the defense or just jumps up and grabs a ball 40 yards down-field?