Pro Football Focus keeps a stat called "pass blocking efficiency," which it says "measures pressure allowed on a per-snap basis, with weighting toward sacks allowed."
Now I don't know what that means, but I decided to take a look at the proportion of the Dolphins' sacks PFF attributed to blocking, versus the proportion attributed to Ryan Tannehill.
The Dolphins have had 58 sacks on the season. PFF attributes 41 of those to the Dolphins' blocking, and (apparently) the remaining 17 to Tannehill.
The table below shows each NFL team's number of pass plays, its total number of sacks, the percentage of its pass plays in which a sack occurred, its sacks attributed by PFF to the team's blocking, the percentage of its pass plays in which it had sacks attributed to blocking, its sacks attributed by PFF to the team's QB, and the percentage of its pass plays in which the team had sacks attributed to the QB:
So we can see here that the Dolphins are well above the league norm in total sacks, well above the league norm in its percentage of pass plays in which a sack occurred, well above the league norm in sacks attributed to blocking, and well above the league norm in the percentage of pass plays in which they had sacks attributed to blocking, but not significantly different from the league norm in either the number of sacks attributed to the QB, nor the percentage of pass plays in which they had sacks attributed to the QB.
This lends support to people's perceptions that the offensive line has been far more at fault than Ryan Tannehill for the Dolphins' inordinate number of sacks this year.
Now I don't know what that means, but I decided to take a look at the proportion of the Dolphins' sacks PFF attributed to blocking, versus the proportion attributed to Ryan Tannehill.
The Dolphins have had 58 sacks on the season. PFF attributes 41 of those to the Dolphins' blocking, and (apparently) the remaining 17 to Tannehill.
The table below shows each NFL team's number of pass plays, its total number of sacks, the percentage of its pass plays in which a sack occurred, its sacks attributed by PFF to the team's blocking, the percentage of its pass plays in which it had sacks attributed to blocking, its sacks attributed by PFF to the team's QB, and the percentage of its pass plays in which the team had sacks attributed to the QB:
TEAM | PASS PLAYS | TOTAL SACKS | TOT SACK % | BL SACKS | BL SACK % | QB SACKS | QB SACK % |
NYG | 580 | 39 | 6.72 | 32 | 5.52 | 7 | 1.21 |
ATL | 612 | 34 | 5.56 | 26 | 4.25 | 8 | 1.31 |
ARZ | 570 | 40 | 7.02 | 32 | 5.61 | 8 | 1.40 |
IND | 614 | 31 | 5.05 | 22 | 3.58 | 9 | 1.47 |
CHI | 606 | 29 | 4.79 | 12 | 1.98 | 17 | 2.81 |
HST | 648 | 41 | 6.33 | 17 | 2.62 | 24 | 3.70 |
CLV | 706 | 46 | 6.52 | 25 | 3.54 | 21 | 2.97 |
BLT | 632 | 46 | 7.28 | 21 | 3.32 | 25 | 3.96 |
NE | 646 | 39 | 6.04 | 33 | 5.11 | 6 | 0.93 |
JAX | 605 | 47 | 7.77 | 28 | 4.63 | 19 | 3.14 |
MIA | 626 | 58 | 9.27 | 41 | 6.55 | 17 | 2.72 |
TEN | 587 | 36 | 6.13 | 22 | 3.75 | 14 | 2.39 |
PIT | 607 | 42 | 6.92 | 31 | 5.11 | 11 | 1.81 |
SD | 552 | 27 | 4.89 | 17 | 3.08 | 10 | 1.81 |
TB | 531 | 45 | 8.47 | 22 | 4.14 | 23 | 4.33 |
PHI | 553 | 41 | 7.41 | 23 | 4.16 | 18 | 3.25 |
KC | 601 | 38 | 6.32 | 25 | 4.16 | 13 | 2.16 |
NO | 666 | 36 | 5.41 | 23 | 3.45 | 13 | 1.95 |
WAS | 639 | 40 | 6.26 | 17 | 2.66 | 23 | 3.60 |
OAK | 553 | 42 | 7.59 | 18 | 3.25 | 24 | 4.34 |
MIN | 589 | 41 | 6.96 | 20 | 3.40 | 21 | 3.57 |
NYJ | 529 | 47 | 8.88 | 23 | 4.35 | 24 | 4.54 |
DAL | 583 | 35 | 6.00 | 20 | 3.43 | 15 | 2.57 |
SL | 524 | 34 | 6.49 | 20 | 3.82 | 14 | 2.67 |
CAR | 520 | 42 | 8.08 | 21 | 4.04 | 21 | 4.04 |
DET | 632 | 18 | 2.85 | 9 | 1.42 | 9 | 1.42 |
SEA | 487 | 40 | 8.21 | 25 | 5.13 | 15 | 3.08 |
BUF | 572 | 44 | 7.69 | 12 | 2.10 | 32 | 5.59 |
GB | 606 | 42 | 6.93 | 28 | 4.62 | 14 | 2.31 |
DEN | 652 | 17 | 2.61 | 12 | 1.84 | 5 | 0.77 |
CIN | 605 | 29 | 4.79 | 20 | 3.31 | 9 | 1.49 |
SF | 438 | 34 | 7.76 | 19 | 4.34 | 15 | 3.42 |
AVERAGE | 589.72 | 38.13 | 6.53 | 22.38 | 3.82 | 15.75 | 2.71 |
STANDARD DEV | 55.20 | 8.26 | 1.53 | 6.87 | 1.16 | 6.69 | 1.20 |
DOLPHINS Z | 0.66 | 2.40 | 1.79 | 2.71 | 2.35 | 0.19 | 0.00 |
DOLPHINS PERCENTILE | 74.5 | 99.2 | 96.30 | 99.7 | 99.10 | 57.5 | 50.00 |
So we can see here that the Dolphins are well above the league norm in total sacks, well above the league norm in its percentage of pass plays in which a sack occurred, well above the league norm in sacks attributed to blocking, and well above the league norm in the percentage of pass plays in which they had sacks attributed to blocking, but not significantly different from the league norm in either the number of sacks attributed to the QB, nor the percentage of pass plays in which they had sacks attributed to the QB.
This lends support to people's perceptions that the offensive line has been far more at fault than Ryan Tannehill for the Dolphins' inordinate number of sacks this year.