"I knew it would blow up in my face and come down on me if it wasn't successful, but I did not plan on it being a burden on our football team, which it was," Ryan said, according to an ESPN.com report. "That's why I won't make them."
The Jets went 8-8 in 2011.
"I just hope I'm here a long time. ... I'm confident in my abilities," Ryan said. "But I'm more confident in the people we have in the building here. Sometimes the head coach can get let go because maybe he doesn't have the people around him. I have the people around me.
"If they let me go, it's not because of that reason. It's because I must have failed. I have a tough time believing that I'm going to fail with the men on this football team (and) the people in this building. I just have a tough time believing I won't be successful."