Pennington and Sanchez, of course, were also first-round draft picks who raised hopes for a while, too, before injuries robbed Pennington of his arm and Sanchez was undone by organizational ineptitude and his own inability to elevate his play when the Jets wanted to put more of the game in his hands. But their playoff appearances (in 2002, '04 and '06 for Pennington and '09 and 2010 for Sanchez) still loom large in a team history devoid of much postseason success. Their career arcs, though, are reminders that it is folly to assume Darnold is assured of sustained success no matter how quickly he wins the starting job, particularly because he has so much development ahead of him. The Jets will focus on cutting down his turnovers, the black mark on his resume. He had 22 of them last season, far too many for a team without much margin for error, that -- reality check -- will still be scrambling to make up ground on the New England Patriots in the AFC East.