Adam Gase accepted a job with the belief the same quarterback could start every game for the next decade or more. Instead, the Jets’ first-year head coach will turn to his third different starting quarterback in the first three weeks of the season.
Sam Darnold sidelined with mononucleosis, and Gase announced Tuesday backup quarterback Trevor Siemian will require season-ending surgery on his left ankle, before the coach anointed third-stringer Luke Falk as the team’s starter for Sunday’s game at New England. Gase said the team was in process of determining who would be brought in to back up Falk — who had never thrown a regular-season pass before Monday — with free agents and former Gase…
