Jerry Trestman balanced himself with a black cane as he stood in the dimly lit concourse outside the Bears' locker room late Sunday afternoon. His navy hat with the orange "C" rested just above his glasses. He watched as his son doled out hugs and kisses to a dozen or so family members wearing blue and white jerseys. Cellphone cameras flashed. This was an occasion worth celebrating. His son Marc coached the Bears to a 24-21 victory over the Bengals in his NFL debut. Better yet the win required a thrilling comeback and a critical coaching decision in the fourth quarter. "I'll tell you something" Jerry said pride lifting his words. "This journey began in 1981." Marc Trestman began his coaching career that year while studying law at the University of Miami. He took a few moments Sunday to appreciate his lengthy path to Soldier Field's home sideline. In another way though it was only the beginning. A new chapter of Bears football started with some inspired offense in the second half. And the familiarly fierce defense matched that with three takeaways. Trestman downplayed what the milestone meant to him and deflected credit for the Bears' second-half surge. "Sundays are for players" he said. Players such as quarterback Jay Cutler who overcame a fourth-quarter interception to complete the decisive 19-yard touchdown pass to receiver Brandon Marshall with 8 minutes 6 seconds remaining.