It's a matter of time until teams start making him be a pocket passer. You're going to start seeing mush-rushes and spys being used. Teams wont give Jackson the option to pass, they're going to force him to stay in the pocket and win from there.
I'm not sure this is true. It's not like anything has changed in regards to how teams expect Jackson and this offense to look. The Bengals knew exactly what we were going to do, or at the very least they knew what to expect by halftime. nothing in the past 4 1/2 games has been surprising. Teams know it's coming and still have not done been able to accomplish the things that people are saying are fairly simple ways to stop this offense.
I don't think it's as simple as changing your defensive gameplan to stop this rushing offense. The approach seems obvious. And yet the offensive line and runners have done enough to continue to consistently gain yards. The offense will get held down eventually, but it will be because the opposing defensive players won their battles, not because some coordinator finally cracked the code. It's no secret.