[Chris] Collinsworth has become football\u2019s most prominent critic of illegal tackling by drawing on more than just his intelligence, which is roundly praised, or his experience as an often-defenseless receiver, which is roundly surmised. Rather, with one son breaking wedges for Notre Dame and another in high school ball, and as a longtime Kentucky youth coach, Collinsworth communicates parental impatience regarding the N.F.L.\u2019s self-proclaimed culture change.<\/p>\n
\u201cThis is a league that we\u2019ve always celebrated the biggest hits and the bone-jarring blows, but you can\u2019t hide from the evidence anymore,\u201d\u009d Collinsworth, in a telephone interview, said regarding the short- and long-term effects of football head trauma. \u201cWe\u2019re talking about the very essence of the game. I\u2019d be less than honest if I said I didn\u2019t have my doubts as to whether my children should be playing football.\u201d\u009d<\/p>\n