This was the most competent the Jets offense has looked in a long time. The first few weeks were rough for several reasons. New system, OL struggled a bit, QB was very inconsistent, receivers were inconsistent, etc.
But basically from Week 4 on, the offense was pretty competent, and it was competent with 4 different quarterbacks, and a rotating cast of wide receivers, no tight ends, and one of the worst RB groups on paper in the NFL. For that to happen, you need good OL play, and you need good coaching.