I don't see how anybody could say there has been a better O-Line in the NFL the last 3 years. Our sacks allowed rate combined with the average time our QB's hold the ball is far superior to any other team in the NFL. And we had the top running game in the league in 2014 and 2016. In 2015 we had one of the best running games in the league with Darren McFadden and Joseph Randle...with no Dez and a combination of Brandon Weeden/Matt Cassel/Kellen Moore at QB.
Now, this year we will have to see given that Cooper is at LG and Collins is playing RT. But we had the far superior O-Line to both the Raiders and Steelers, so there needs to be a substantial drop-off combined for the Dallas O-Line with an improvement from the Raiders/Steelers O-Line to take over that title.
And honestly, I wouldn't be at all surprised if the O-Line this year is *better* than the O-Lines in 2014-2016. I think Collins will be an upgrade over Free, particularly as he gets more time in at RT and particularly in pass protection. And if Cooper flashes some of his old talent and looks like he did against the Colts in preseason, he's an upgrade over Leary.
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