It's pretty grim looking back at who those 80s Bears teams actually had playing QB by the time the playoffs rolled around.
In 84, Steve Fuller went 13 for 22, 87 yards, 1 Int in the NFC Championship game.
In 86, Doug Flutie went 11 for 31, 134 yards, 1 TDs, 2 Int in the Divisional round.
In 87, McMahon went 15 for 29, 197 yards, 1 TD, 3 Int in the Divisional round.
In 88, McMahon went 14 for 29, 121 yards, 1 Int and Tomczak went 6 for 12 for 55 yards in the NFC Championship game.
In 90 Tomczak went 17 for 36, 205 yards, 2 Int in the Divisional round.
In 91 Harbaugh went 22 for 44, 218 yards, 1 TD, 2 Int in the Wild Card.
Not one starter posted a QB rating above 55 in those 7 games. In 89 when the Bears missed the playoffs, Tomczak and Harbaugh had 68.2 and 70.5 QB ratings, respectively. It's pretty amazing some of those teams made the playoffs at all. From 86-87, Tomczak started 13 games while throwing 7 TDs to 20 Int, with the team somehow going 11-2 in those games. During that entire run from 84 to 91, as a team, the Bears threw more TDs than Ints in every season except 85 and 90.