We were 374-169-38 in our 1st 581 games as a franchise, including post-season, from 1920-'65. The only time that we were as many as 10 games under .500 between any 2 points in franchise history was when we were 12-22-1 from 1951-'54.
Then, from 1965-'83, we were 99-151-4, including post-season:
Ditka 6-13, the final being a tough 21-14 loss to the Rams at Anaheim less than a week following the death of George Stanley Halas. We played an inspired game after being in a general funk for several years, despite exceptional drafting and personnel decisions by GM Jim Finks
Then, from 1983-'91, including post-season, Mike Ditka led us to a 99-40 record, our best 140 game stretch since 1940-'52. This also made us at least 7 games over .500 from any point in franchise history, after eclipsing the 52 games under .500 from '65-'83.
However, after years of poor drafting and personnel decisions, we were 89-132 from 1991-2005, including post-season:
Then Lovie led us to a 78-52 record from 2005-'12. We must give him credit for turning things around, especially our defense and special teams, even though he failed from an offensive standpoint, although GM Jerry Angelo can take most of the blame for that.
So we are still 17 games under .500 since '91. Hopefully, Trestman can make that up by next February. More likely, he will do it late in the 2014 season. I am predicting that he will be 28-7 thru his 1st 35 games, including post-season.