Frustrated Mitch Rookie quarterback Mitch Trubisky offered a harsh assessment of his own play, saying he played “really poor” and that the game was “very strange.” “I just have to be better overall,” he said. What gives? Trubisky attempted seven passes, but the game still was full of learning experiences. He was hard on himself because he still made mistakes. Here are three examples: * On third-and-seven from the Panthers’ 25, Trubisky missed tight end Zach Miller, who was open in the left flat. Instead, he held the ball and was sacked for a nine-yard loss. Kicker Conner Barth was backed up for a 52-yard field goal, which the Panthers blocked. * On the Bears’ third-and-goal play from the Panthers’ 2 in the second quarter, Trubisky missed Tanner Gentry, who was open in the back of the end zone on a crossing route. Trubisky took his eyes off his receivers and tried to beat defensive end Julius Peppers to the pylon. His touchdown run was overturned. * On the second play of the third quarter, Trubisky got away with a bad pass to Miller. He tried to loft the ball to Miller between cornerback James Bradberry and safety Mike Adams. Bradberry failed to make a diving interception. “I’ll be on the receivers and tight ends this week to continue to perfect our timing and routes,” Trubisky said. “However, it mostly falls on me, so I just have to get better.” More on Mitch The simplicity of the Bears’ game plan stood out only because of how much variety Trubisky provides because of his athleticism. For the second consecutive week, the use of plays that alter Trubisky’s launch points declined.