Around these parts, we’ve had a front-row seat witnessing the NFL’s most stunning fall from a season of massive expectation.

The demise of the Jets — with Aaron Rodgers, a supposedly stout defense, a core of good young talent and the in-season additions of star veterans Davante Adams and Haasan Reddick — has been the most disappointing development in the NFL this season.

The Jets are 3-8 and have already fired their head coach and general manager entering Week 13.

The Bengals are a close second to the Jets in that dubious category of most disappointing NFL team, resting on the cusp of playoff elimination at 4-7 entering Sunday’s absolute must-win home game against the AFC North rival Pittsburgh.