Really, though, this game was about turnovers.
In order, the Dolphins got a fumble recovery by Eddie Jackson on special teams, an interception returned for a touchdown by Jason Taylor, a fumble recovery by Kevin Carter, a fumble recovery by Andre Goodman, an interception by first-round pick Jason Allen and finally an interception by Renaldo Hill.
All four Dolphins touchdowns came as the result of turnovers. In addition to Taylor's touchdown in the first half, Joey Harrington also threw touchdown passes to Marty Booker, Wes Welker and Chris Chambers.
That made it a successful day for Harrington, who also was picked off twice.
The Dolphins trailed 3-0 in the second quarter when they got their first takeaway, Jackon's recovery of a Devin Hester fumble on a punt return.
That set up Booker's touchdown, which then was followed by Taylor's interception return for a touchdown.
So the Dolphins led 14-3 and they appeared ready to add to their lead after Carter's fumble recovery and a first down gave them a first-and-goal from the 8-yard line.
But on third down Harrington was intercepted at the line of scrimmage by defensive end Alex Brown, and the Bears proceeded to march 86 yards for a touchdown that cut the lead to 14-10.
Then the Dolphins closed out the half by watching Olindo Mare miss a 37-yard field goal, and it seemed the Bears had all the momentum heading into halftime.
But on the first offensive snap of the second half, Yeremiah Bell, who played very well in his first career start, stripped Justin Gage after a 16-yard reception and Goodman returned the fumble all the way to the Bears 12-yard line.
On third down, Harrington hit Welker for a 6-yard touchdown, and the lead was back up to 21-10.
The Dolphins were never really threatened again, as their pressure made Rex Grossman look like a horrible quarterback.
Another key was the running of Ronnie Brown, who rushed for a career-high 159 yards against the No. 1 defense in the NFL.
The Dolphins didn't play a perfect game because they gave the Bears two first downs with offside penalties on fourth down and they also dropped a couple of passes in the first half.
But they made things happen on defense, matching their interception total of the first seven games with the three picks.
It was the type of effort we've been looking for from the Dolphins all season. The reality is all the victory means is the Dolphins reach the halway mark of the season at 2-6 instead of 1-7, but at least now there's some hope for the rest of the season.