so you watched every game of every team?
Two independent groups (PFF and Football Outsiders) did reviews of all the sacks by all the teams.
I'll help you out and summarize again:
I decided to take the two sources (PFF and Football Outsiders) and see if they are at all consistent with each other. The football outsiders list was not for the complete season and they used different grouping criteria (PFF was blocking or QB, FO was blown block, confusion, or coverage). Clearly the confusion sacks could be on the QB or on the OL. I decided to just sort the FO list by blown blocks and the PFF list by blocking sacks (both highest to lowest) to see how similar the lists were. I split the 32 teams into 3 groups (11 in the top, 10 in the middle, and 11 in the bottom).
For the top 11 list (presumably the worst OLs for pass blocking), 8 out of the 11 were common to both lists. For the bottom 11 list (better OL), 7 out of the 11 were on both lists. Both lists had Miami as the worst and in both cases by a wide margin. For example, on the FO list, Miami's OL was credited with 35 blown blocks with the next four worst at 25, 22, 22, 22. PPF credits Miami's OL with 41 blocking sacks with the next 4 worst at 33, 32, 32, 31.
The two INDEPENDENT lists are very similar to one another and both show that Miami's OL was largely to blame and worse than the rest of the league by a wide margin.
Why is he so dense on this topic. These are not my evaluations.
Another article on Football Outsiders looked at the timing of the sacks. Most people realize that the longer a sack takes, the more likely that the QB is at fault. This article from Football Outsiders looked at that.
Dolphins quarterback Ryan Tannehill has been sacked 17 times (53.1 percent) on short sacks, 12 times (37.5 percent) on medium sacks and three times (9.4 percent) on long sacks. It’s a pretty clear sign that the Dolphins sack problems (and they are significant problems) are the line’s fault, and not the fault of wide receivers failing to get open or a quarterback who holds the ball too long.
Looking at the QBs with 20 or more sacks, there is an interesting breakdown:
QB Short Sacks PCT Normal Sacks PCT Long Sacks PCT
17-R.Tannehill 17 53.10% 12 37.50% 3 9.40% 32
7-G.Smith 5 17.90% 8 28.60% 15 53.60% 28
3-R.Wilson 8 29.60% 9 33.30% 10 37.00% 27
7-B.Roethlisberger 8 30.80% 9 34.60% 9 34.60% 26
11-A.Smith 9 37.50% 8 33.30% 7 29.20% 24
12-T.Brady 14 60.90% 4 17.40% 5 21.70% 23
3-C.Palmer 13 56.50% 5 21.70% 5 21.70% 23
2-T.Pryor 3 13.60% 6 27.30% 13 59.10% 22
1-C.Newton 6 28.60% 5 23.80% 10 47.60% 21
3-B.Weeden 5 23.80% 6 28.60% 10 47.60% 21
5-J.Flacco 7 35.00% 7 35.00% 6 30.00% 20
The young QBs (except Tannehill), G. Smith, Wilson, Pryor, Weeden, Newton all have more long sacks (likely their fault) than short sacks. The veteran QBs, Brady, Palmer have more short sacks. Roethlisberger, A, Smith, and Flacco are evenly distributed. Tannehill takes very, very few long sacks. In fact, despite being sacked most overall (by far), he has the fewest number of long sacks. When compared to QBs with similar amounts of experience, the difference is striking.
We now have three different looks at the sacks. Two attempt to assign blame by observing the actual plays. One uses the timing of the sack (therefore not subjective). All come to the same conclusion. To top it off, the team confirmed the problem by making OL changes in mid season.
I don't know why anyone needs to look any further for blame.