Original sentence: He was also known for his trademark black and white houndstooth or gingham hat, deep voice, casually leaning up against the goal post during pre-game warmups, and frequently holding his rolled-up game plan while on the sidelines
Edited sentence: Despite his coaching prowess at the college (amateur) level, he was never able to ascend to the pinnacle of coaching, the NFL.He was also known for his trademark plaid hat, deep voice, casually leaning up against the goal post during pre-game warmups, and frequently holding his rolled-up game plan while on the sidelines