Agree with you here. Once someone like Stidham is QB, the talent dropoff on offense will be Jets-like laughable. Opposing defenses will throw the kitchen sink at Stidham, he won't be able to read defenses, nor conduct the offense, and all the warts of the OL will look even worse. Especially if McDaniels departs, and especially if Dante retires again. It will be very bad for the Patriots.
They need to hit on a QB like we see everywhere around the league these days. Unfortunately, the Patriots will have to suck one year for a shot at a QB like that.
And/or sign someone like Jameis Winston if he hits the free agency market.