Tony Romo stays focused amidst broadcasting criticism

Tony Romo recalls changing his throwing motion due to criticism during his playing career.
Romo's high salary as broadcaster amplifies criticism, including about enthusiasm and chemistry with Jim Nantz.
Romo draws on experience as NFL quarterback to deal with criticism and shape his perspective.
Romo acknowledges positive in-person interactions but understands varied media opinions.
Romo remains determined to continue improving as broadcaster despite criticism.