At first I thought it was a #2 wide receiver who has a higher catch percentage. And I still strongly believe this is the case. We had way too many dropped passes last year.
But under further review of the offensive line, and comparison to other elite quarterbacks I see that the offensive line play is a stronger indicator of what separates Romo from the other elite quarterbacks.
Tony Romo - 675 drop backs, 217 plays under pressure, 280 blitzes.
Let me explain what this means first.
It means that Tony Romo dropped back to pass 675 (and either passed, ran, or was sacked, but did not hand the ball off to a running back).
Of those 675 plays he was blitzed 280 times.
Romo's QB rating while being blitzed is 92.1
Romo's QB rating while under pressure is 71.5
Romo's QB rating with no pressure is 105.7
This means when teams blitzed romo, his qb rating was 92.1, when teams either failed to pick up the blitz, or just got to romo his qb rating drops to 71.5
When teams aren't blitzing him, and aren't getting to him his qb rating is 105.7.
Peyton Manning - drop backs - 715, 162 plays under pressure, 203 blitzes.
Peyton Manning's QB rating while being blitzed is 93.6
Peyton Manning's QB rating while under pressure is 77.2
Peyton Manning's QB rating with no pressure is 105.8
These numbers are nearly QB ratings are nearly identical to Romo's. Romo's QB rating is slightly lower under pressure, but the key is that Romo had 55 more plays over the year under pressure, with 35 LESS drop backs.
Drew Brees - Drop backs - 643, 167 plays under pressure, 158 blitzes.
Drew Brees's QB rating while being blitzed is 108.1
Drew Brees's QB rating while under pressure is 73.7
Drew Brees's QB rating with no pressure is 122.2
Drew Brees was probably the best qb last year, but his under pressure qb rating is almost the same as Romo's. I would say Romo is much closer to Peyton Manning right now than he is Drew Brees. But the difference isn't as great as it might seem.
Romo's numbers are nearly identical to Peyton Manning's. I think it can be really argued that Romo had a better year individually. If Romo was behind Peyton Manning's offensive line he would probably be a super bowl champion right now.
You have got to believe that we need players who can pass block better. That is our most glaring need.
Note: The stats come from ProFootballFocus.com, not NFL.com, I've seen some inconsistencies, that I do not quite understand. But I guess thats what happens when you have different people tracking stats, that said, the site seems very credible.