-the '63 Packers went 11-2-1. No team in the league won more games . They didn't make the playoffs.
-The '68 Colts went into the last week of the season undefeated; they finished 11-1-2 and didn't make the playoffs.
The key word here is competition.
Competition indeed. In 1963, the Bears went to the championship game by beating the Packers twice.
The second meeting was in week 10 and amounted to the conference championship. The conference standings going into that game were:
GB 8-1
CHI 8-1
BALT 4-5
DET 4-5
MIN 3-6
LA 2-7
SF 2-7
This serves to illustrate my point. With only 14 teams, and where winning the Conference is entry to the championship game where only 1 postseason win earns a ring,
getting to the postseason was harder in only a few seasons, but winning a championship was easier.
I say "some seasons" for a reason.
- In 1960, the Packers beat out the 7-5 Lions and 7-5 49ers in the regular season for entry to the championship game.
- In 1961, the Packers beat out the 8-5-1 Bears in the regular season for entry to the championship game.
- In 1962, the Colts beat out the 9-5 Steelers in the regular season for entry to the championship game.
- In 1964, the Colts beat out the 8-5-1 Vikings and Packers in the regular season for entry to the championship game.
- In 1965, the Browns beat out the 7-7 Giants and Cowboys in the regular season for entry to the championship game.
- In 1966, the Packers beat out the 9-5 Colts and the Cowboys beat out the 9-5 Browns and 9-5 Eagles for entry to the championship game.
In each of those cases, the second place team or teams had what we'd consider today a borderline or sub-playoff record.
As for your second example, it was 1967, not 1968, and that was the first season of divisional play which is an entirely different scenario. At that time the 4 division winners out of 16 teams made the postseason; it was easier to make the playoffs than before but you hand to win
two postseason games to win a championship..
My point is that since 1967, it has gotten progressively
easier to make the playoffs but progressively harder to win a championship, regardless of free agency, because now, after a long season, you have to beat 3 or 4 other good teams to earn the ring which often comes down one play or one bounce of the ball over the course of those 3 or 4 games. Consider the outcome if the Steelers had gotten a bounce on Matthews forced fumble. That's compared to this Chandler FG...there were only two games (or in other seasons only one game) where a lucky event could be the margin of championship victory.
Since 1993 it has gotten progressively harder to win a championship for several reasons:
First, there was the implementation of true free agency 1993.
That was followed by the salary cap in 1994.
First round pick money escalated throughout the 90's and 00's to absurd levels, diminishing the value of draft acumen given the cap as teams had to pay unproven Peters at the expense of signing proven Pauls.
Exploding TV money led to the 2011 CBA increase in shared money and the requirement that all teams have a cash spend of 89 or 90% of cap over 5 year periods which is coming to full fruition now. Weak sisters in mid-to-low population markets spending well below the cap is largely a thing of the past; you can do it for a year or two now but not as a habit, and if you do have low spend years you'll have to play catch-up with high spend in the subsequent ones.
There are 32 teams, not 14, to compete with. All of these organizations are now mature, with the last expansion in 2002, all working with sufficient revenue to pay up to the cap while at least breaking even as a business venture.
Consider the raft of new stadiums, stadium renovations, and add-on entertainment districts in low-to-mid markets increasing local revenue; today failure to build leads to relocation, further narrowing the gap.
The only notable thing in the last 50 years that has made it easier to win a championship is the rookie salary scale implemented in 2011. With that change, at least draft acumen is more important than before it was implemented.