Any chance mixon and Perine were the beneficiaries of an excellent oline? Neither one really impressed me in their rookie years.
Possible.
Also possible they benefited in some ways from each other. Mixon more than Perine in this regard.
Perine did most of the difficult unsexy stuff, while Mixon got the offensive weapon type looks.
Really would need to delve into their offensive line players, where they were drafted into the NFL and some rankings of offensive lines to be sure if that was a benefit or not.
With Alabama and Ohio State this should be pretty much a given that the players are benefiting from strong supporting cast. Other teams have good offensive line players for awhile. For example Indiana with Coleman was a good offensive line. Had some players drafted from it already. LSU was a good offensive line when Hill was drafted and just a good team overall, similar to Oklahoma. Not sure their offensive line players the last 2 years has been as good as it was for a few years there or not.
Just
looked it up and there have been zero Oklahoma offensive linemen drafted into the NFL since 2015. 2 tackles were drafted, 4th and 6th round, so not particularly great offensive linemen.
Possible some Sooner offensive linemen will be drafted this year, which could give us more information about that.
According to FBO Oklahoma was a very good run blocking offensive line in college football 2016. Right up there with Ohio State for example with some top 5 rankings in their metrics.
edit - correction. Oaklahoma was a better offensive line in 2017, top 10 in several of FBO metrics. This was after Perine and Mixon were drafted however, in 2016 they were 19th 45th and 47th.
So above average but not really a great offensive line.
I guess I'm not sure if your talking about the college or pro offensive lines though. Washington is good but they had tons of injuries this year. The Bengals used to be good but clearly regressed after losing Whitworth and Zeitler.