NEW YORK — Entering Sunday’s matchup, the Jets aren’t the only team that has some questions at the quarterback position. Bears quarterback Justin Fields has been limited in practice this week after separating his non-throwing shoulder during last weekend’s 27-24 loss to the Falcons. Although Gang Green has been preparing for both Fields and his backup Trevor Siemian, the overall objective will remain the same for the team. “If he plays, we will hit him,” Jets coach Robert Saleh said about Fields. “If he doesn’t play, we will do our best to hit the next guy.” After struggling during his rookie …