eriadoc
Texan-American
Some interesting points. LINK
The idea that there aren't 32 good NFL quarterbacks is overstated
Nobody would have said that Keenum was an upper-echelon starter before this season. If anything, they would have held up Keenum's 24 pro starts as proof that there weren't enough good quarterbacks to go around in the NFL. Yet here we are in Week 12, and Keenum ranks second in Total QBR and 10th in passer rating through 10 games and 330 pass attempts. If he isn't a good quarterback, he sure is doing a wicked impersonation of one.
You might argue that Keenum is in a great situation to succeed given the quality of his defense and his receivers, and I'd agree. If Keenum can look like a Pro Bowler in that context, though, we need to change the way we talk about scarcity. Instead of saying that there aren't 32 good quarterbacks to go around, we should be saying that there aren't 32 good situations for quarterbacks at any given time in the NFL.
Coaching matters
It's telling that the two biggest quarterback surprises of the 2017 season were on the same team last season and didn't play very well. Keenum began his 2016 campaign as the starter for the Rams before giving way to first overall pick Jared Goff. Keenum was mediocre, and Goff was worse.
Investing in infrastructure is probably better than throwing money at a prayer of a passer
Keenum wasn't exactly a highly desirable quarterback on the free-agent market this offseason. He ended up signing a one-year, $2 million deal with the Vikings to serve as the primary backup behind Bradford until Bridgewater returned, at which point Keenum would presumably have become the third quarterback. You don't need me to tell you that Keenum is making less than the vast majority of starting quarterbacks, but with $1 million guaranteed at signing, Keenum wasn't even making good backup money.
Quite clearly, Keenum was the best veteran quarterback signing of the offseason. Elsewhere, teams with a possible hole under center signed bigger-name options such as Josh McCown, Brian Hoyer, Matt Barkley, Jay Cutler and Mike Glennon, the latter of whom will cost the Bears $18.5 million before he is released. Keenum had relatively similar statistics to those of the better options within that group over the past five seasons, but he just wasn't taken as seriously.
The Vikings benefited, in a way, by keeping their budget low. They didn't spend a ton of money to go after a backup, given Bradford's $18 million cap hit, and the millions of dollars they saved by going after Keenum as opposed to McCown, Cutler or Glennon went elsewhere on their roster.