Of course if it is the trend in the league to not run wide, maybe that means it is an especially good time to bring it back. After all, if I recall correctly, wasn't that what Lombardi did originally, make the sweep a key component when no one else was doing it?
Of course, it requires good offensive linemen of a particular sort to pull it off. But then again, it isn't as if we don't need OL anyway.
Was the Packer sweep successful in the 60s just because DL were slower? I'm not sure it's that simple.
Partly because I don't think we know how fast/slow LBs/DLs were "back in the old days." (When did people start being obsessive about 40 times?)
Partly because to the extent that speed does matter, what matters is the *difference* between speed on offensive and defensive sides of the ball. How much has the speed difference between a LB and an OL changed, for example? If the difference was half a second in 1960 and .48 of a second in 2010, would that matter?
And partly because they didn't have a lot of speedy backs back in the day either. Neither Taylor nor Hornung nor Anderson nor the others had the speed of today's backs. Travis Williams did, but he wasn't a great running back. Can you imagine what a Barry Sanders would have done behind Kramer and Thurston? That NFL rushing record would be out there so far no one would ever approach it.
And partly because the success of the sweep was made by a lot of things, not just by the ability to get from point A (initial stance) to point B (somewhere else) in a given amount of time.
One of the things that blew me away in the HBO special on Lombardi was the comment by another coach, I forget who, who was talking about being a young up-and-coming coach and "knowing it all" and then going to a workshop and being blown away by Lombardi talking for EIGHT HOURS on execution of the Packer sweep.
It seems to me that if a Hall of Fame coach can offer eight hours of "blow me away" instruction to another NFL head coach on one play without being repetitive or otherwise boring, there's a heck of a lot more determining that play's success/lack of success than mere speed of DL/LB.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
Romans 12:2 (NKJV)