I'll be the minority here but I think the Jets are close to being a playoff team, maybe a contender with a good offseason.
Big mistakes were not investing more in o line, giving Rodgers too much power (may have agreed to that to get him), and HACKETT.
If they fix the o line and Rodgers is healthy that will hide the Hackett effect. That defense is no joke. Pair it with an offense that doesn't go 3 and out all the time and you have something.