By Daniel Bates The NFL fraternity was dealt another blow this past week with the passing of former Cowboys running backs coach Gary Brown. Brown’s battle with cancer took his life on Sunday at 52 years old. A former NFL running back in his own right, Brown spent seven seasons on Dallas’ staff. Last night, former Cowboys star RB DeMarco Murray shared a message after learning of Brown’s death, tweeting, “Great Father, Husband, Coach, and Mentor. Appreciate you and your family more than anything GB… Thank you for teaching me the way on the field and in life. Appreciate you Gary Brown.” Brown was…