Of course the Minnesota Vikings made a late Friday afternoon move, signing cornerback Mackensie Alexander. Do we like the signing? What do we expect from Alexander's role? What does this mean for Jeff Gladney and Cameron Dantzler? Plus Matt Harmon of Yahoo! Sports joins to talk about his Reception Perception project and why Justin Jefferson was so special and what the numbers say about Alabama's DeVonta Smith, who NFL Network mocked (once) to the Vikings