On Tuesday, NFL commissioner Roger Goodell was a guest on the "Rich Eisen Show" and said that the NFL found no PSI violations in "spot checks" over the course of the 2015 season. That information was relayed, along with the obvious follow-up that more questions linger and Goodell has several more questions to answer on the topic.

Columnists whose job is to opine on such topics have been critical of Goodell. A sampling of links:

Another black eye for NFL. Dan Wetzel of Yahoo! Sports writes, "Since the NFL established the ball-testing plan, scientists around the country have been waiting to see how the league tried to spin its way out of Ideal Gas Law, which has been accepted fact since 1834. It seemed like Goodell was walking the league into a trap. Apparently the league won't even try to fight it and just hope no one is paying attention."

Will NFL share PSI numbers? Tom E. Curran of Comcast SportsNet writes, "You are Roger Goodell, NFL Commissioner. ... You now have numbers in hand that will either prove you were right all along, that the Patriots footballs measured (haphazardly) last January dropped so precipitously the results couldn’t be duplicated. Or you have numbers in hand that prove you threw up all over yourself. What do you do with these numbers? You pretend you never wanted anyone to see them."

NFL blows chance to understand air pressure. Mike Florio of ProFootballTalk.com writes, "Basically, the league found a way to create the impression that it has created a system for checking footballs without creating evidence that could have exonerated the Patriots, or at worst shown that Wells and his investigators failed to parlay their multi-million-dollar fee into a cracking of the case."

No surprise with NFL's approach. Michael Hurley of CBS Boston writes,"The NFL always has a way of finding what it wants to find and curiously overlooking anything it might not want to discover."