They need to bring in a vet either way, but there's not much out there who has the talent to take the Jets to the next level. Wilson has the talent. He just needs to address the issues with his performance.
The game plan should be this:
-Staple Hackett and Rodgers to Wilson's side. Rodgers is now the highest paid QB coach in the league.
-For the first ~third of the season, run the Wilson game plan from the pre-season. Quick, short throws. Playing it safe and relying on the run. The goal should be to not LOSE the game.
-After that, once he is comfortable again with basic fundamentals, start mixing in more of the plays that got him drafted. Work on his decision making. When should he go for the big play vs. the safe play.
Ultimately, it's the same plan that was in place before Rodgers got hurt, but now he'll be working on it on the field rather than behind the scenes. If it doesn't work it doesn't work, but it has a better chance of working than any of the realistic options out there for a new QB.
I'll also say that the team reacted FAR better to the whole thing than they did last year (with the childish campaigning around Mike White who, for those who still think he's good, had an atrocious pre-season). Garrett Wilson was giving credit to Zach for rallying the team at halftime. Zach Wilson was giving all the credit for the TD to Garrett Wilson. Everyone on the team was giving credit to each other, and that's the kind of culture that wins games.