[Jay R]

On the previous foul (1 or 2 minutes before), the announcers said they were glad that they did not T up Drew for showing his displeasure. I assume that Corbett was influenced by the previous situation and felt that Drew was showing them up.

I also found this from a website:
"As the momentum began to turn, Drew got the ire of one of the officials after staring him down following a foul. When the young coach threw his jacket behind his team’s bench, he earned a quick technical foul that only gave Penn State some more juice.

“I shouldn’t have done that, but I had an itch in my coat and I threw it,” Drew said, smiling afterward. “I apologized to the guys because I shouldn’t have done that.”