Jets Sam Darnold is making a mistake not being at training campIt could cost Darnold that shot at the starting job7/27/2018, 6:00 PMNew York Jets quarterback Sam Darnold works out during the team's NFL football organized training activities, Tuesday, June 5, 2018, in Florham Park, N.J. (AP Photo/Julio Cortez) / Julio Cortez/AP