Justin Fields has the highest time to pass in the NFL. He is largely getting sacked because he holds on to the ball too long and doesn't recognize and anticipate players getting open. Yes, the offensive line has had problems too; mainly on the interior but also some rookie growing pains with Wright. But I would also say that the OL coach not getting fired means that the Bears do not feel the majority of the sack issues were their fault. Whether or not the coaches are RIGHT is another story. But that is what they believe otherwise he would have been fired. Not sure why this is so difficult to understand.