Conversation so far:
What team did Joe Namath play for in Super Bowl III?
Jets.
What team did he play again in the Super Bowl?
Baltimore Colts.
Which team won the Super Bowl III?
The high point of Namath's career was his performance in the Jets' 16-7 win over the Baltimore Colts.
What did he do after the Super Bowl?
Super Bowl III in January 1969, shortly before the AFL-NFL merger.
Is there anything else interesting about the super bowl iii?
The Jets' win gave the AFL instant legitimacy even to skeptics.

Question: Why were people skeptical about the AFL?
Self-contained rewrite: Why were people skeptical about the Jets in in the AFL?