Originally posted by robniner:
Defenses and no cap makes the difference between the two eras.
The cap is a red herring.
In the 1980s you had two avenues to improve your teams: draft and trades. If you missed on the draft you were toast. Yes, you could use "all the money" to sign your guys but if your guys sucked it didn't matter.
Now you have three avenues to improve your team: draft, trades, and free agency. Look at the free agents that the Pats have signed - it's a significant component to their success. You can literally cherry pick great talent, rent it for a couple of years, and jettison it. That simply wasn't the case in 1984.
Defenses in the 1980s could: (a) hit the QB ... in the head; (b) hold WRs past line of scrimmage. The Giants and Bears in the 1980s had multiple seasons when they gave up fewer than 250 points. It is simply easier to play QB now than it was back then. Guys like Stafford and Rivers can throw for 4,000 yards and 30 TDs with regularity. A season like that in the 1980s was unheard of (except Marino).
But leaving that aside, the most significant difference between Joe and Tom is the 6 additional playing years Tom has had. I doubt Joe would have gone to the SB 4 or 5 times in those 6 years given the competition, but on the flip side given the team's success rate in that era it isn't out of the realm of reason to think he would have made it to two more. Taking Joe's 10 years versus Brady's first 10 playing years (2001-2007, 2009-2011), Joe was 4-0, Brady was 3-2.
You play with the time you're given. But the rules now have allowed Brady - and many others - to play the position in relative health well into their late 30s. I doubt Montana would have issues playing today. He would still be really good - and his stats would be considerably better than they were in the 1980s.