Eight things we learned during the 2018 NFL season, one for each division

Andy Reid knew what he was doing.

When I got the assignment to write a "What We Learned in 2018" column, that was the first thing that popped into my mind. Not that I ever necessarily thought Reid didn't know what he was doing, but when I think back to last summer I recall being at least a little bit skeptical about the decision to trade Alex Smith and turn a successful Kansas City Chiefs offense over to an untested Patrick Mahomes. I'm a big one for having to see it before I believe it, and I just figured Mahomes, like most young quarterbacks, would be prone to some growing pains, and that it could set the Chiefs back in the short term. If this were an episode of "Arrested Development,"…