Following a 10-6 halftime deficit, Steelers Coach Mike Tomlin thought his team needed a boost.
So Tomlin changed the quarterback, starting youngster Kenny Pickett in place of veteran Mitch Trubisky for the second half.
Pickett completed 10 of 13 passes for 120 yards, added two rushing scores, and threw three interceptions, one of which came on the game's final play as Pickett attempted to win it in the waning seconds.
Tomlin chose to wait until the following week to address the question of whether Pickett will start when the Steelers travel to Buffalo to face the Bills.
The 24-20 defeat left the Steelers with a 1-3 record, and Tomlin kept things straightforward. Everyone was expected to work harder.
On the defensive side of the field, there were four injuries for the Steelers.
Safety Terrell Edmunds suffered the most prominent injury, forcing him to leave the game with a concussion and enter the recovery process.
Ankle and elbow injuries plagued Cameron Heyward.
Both Minkah Fitzpatrick and Cameron Sutton suffered from knee and hamstring injuries.