The Chicago Bears have a long, tortured history on the offensive side of the ball. Since the start of the 1990s, they have fielded a top 10 unit only four times. Only once in the past 23 years. Bears fans have been through some rough times. There are plenty of reasons for this. Their coaching choices haven’t been the most inspiring. The offensive lines have underachieved, as have the wide receivers. However, everything comes back to the quarterbacks. Jim Miller? Rex Grossman? Kyle Orton? Mitch Trubisky?