There are a couple of similarities in the situation.
1. Is it the passing offense or that the coaching staff realizes the limitations of the qbs. If it's the passing offense you are assuming the coaches are idiots which is a possibility.
2. Are these qbs players who the teams win because of or can win with. If the Bears have a chance to get a QB that they can win because of, it's tempting.
3. The style of these two leads to a greater chance of injury. Do teams want to take that chance of a lucky season without injury in order to win the super bowl.?