Listen: An offense under development; story lines for Vikings OTAs

Ben Goessling, Andrew Krammer and Michael Rand set up the next four weeks of Vikings spring practices. Without pads or contact, what can be learned about first-round center Garrett Bradbury? How smooth will the transition be for Kirk Cousins to a Gary Kubiak-influenced system in which he's familiar? Where do things stand with Kyle Rudolph? If he stays, how could Rudolph be used alongside Irv Smith Jr.?