Team scoring is high but not record-setting: if the season were to end to day, it would go down as the 8th highest in NFL history with 22 points per team per game being scored. It would however be the highest scoring season since 1965, when 23.1 points per team game were scored.
Wait, so the 7 highest-scoring NFL seasons all occurred prior to 1966?
Strange but true. See
here. (Have to sort by points manually after following the link)
Wow, I never would have guessed that.
Less teams, more blowouts are the likely cause.
I am having a hard time convincing myself that fewer teams should mean more blowouts. Also not convincing myself that blowouts mean more league scoring necessarily. A 40-7 blow out scores fewer points than a 27-24 game for instance. They would have to be like 40-20 blow outs and be more common than the ones in other years.Looking at all sorts of things, league size, roster size, players playing both ways, rule changes, etc. Couple of candidates for reasons, but nothing glaring.
All of the years from 48-54 are in the top 15 for team scoring average except for 53. After 54 there seems to be a drop off (other than 1958) until you get to around 1962 when again it jumps.
Now in 1955 they changed the rules to something like the current where any contact with the ground other than hands or feet makes you down. I'm not sure what it was before, probably required the trunk of your body, but that could have caused plays to be blown dead that under the previous rules would have still been alive.
Passing yards plummeted in 1955 as well, going from 192 to 160 per game, but I don't see anything else to point to why after a quick look.
I thought about the goal posts being moved 10 yards from the goal line to 10 yards back at the back of the end zone, but that was in 1974 and scoring had already dropped off from those top 15 seasons back in the 50s and early 60s.
Another big change would be the NFL-AFL merger in 1970, but the scoring in the 60s was already dropping off before that from the high level in the first half of the decade.
I think I read somewhere on the web that the point of emphasis against pass interference had happened twice before it happened back in, what was it most recently, 2004? Both times there was a jump in passing after. One was back right around when Marino had his big season if I remember right. If there was another time before that, could have been it was back in the 60s and that might explain the leap.
FWIW, I'd rather see the league as it exists today than, say, a league that copycats the 2003 Patriots mugging every Colts receiver in sight in the playoffs and not getting called. Which was the direct cause of the next year's point of emphasis about pass interference and illegal contact. But it does suck to see old records fall by the wayside because of rule changes.