[georgeott]

I think weight limits would be a good start. Do we really need 400 pound linemen?

I also think game play would improve with lighter, faster players.

[greedo]

The average starting NFL lineman was around 325 in 2016[1]. The game does like lighter and faster players, but often that's a tradeoff against durability.

1. http://www.foxsports.com/nfl/story/the-nfls-starting-offensi...