re: NFL may prevent runners from lowering their heads into tacklers

Probably, my real problem is the multitude of rules. You're starting to see DBs acclimate to the defenseless receiver/launching rules, now runningbacks who have guys running at them have to be conscious not to lower their head. How can players be expected to do this in a split second with all that is going on in a play.

I'm sticking to it, the NFL will be in sharp decline in 10-20 years and you can look back to this period as the beginning

Lockout
Bounties
Rule changes
Unfair penalties against multiple organizations that literally defy reason