Wilson is new and shiny, there's a new GM/HC that didn't draft Darnold. While I'm not sold on Wilson I think Darnold has shown he doesn't have the "it" in him to be a starting QB at this time. Maybe a change of scenery do him wonders.
Our QB runs a 4.75, our WRs (Diggs, Beasley and Sanders) ran a 4.46/4.49/4.41, Knox ran a 4.58. We might have slow RBs but I'd say the rest of the starting skilled guys are pretty fast.