CNN: Last week, the Arizona Cardinals hired Jen Welter as one of the team’s coaches. It is believed that she is the first woman to hold a coaching position of any kind in the NFL. Welter will work with the Cardinals’ inside linebackers and will coach throughout training camp and the preseason as a training camp/preseason intern. Welter joins the short list of women’s coaches in the “big four” professional sports in North America. The most notable is Becky Hammon, an assistant coach with the NBA’s San Antonio Spurs. Hammon recently made news when she led the Spurs to the Las Vegas Summer League title as head coach. Welter also isn’t the only female pioneer in the NFL this season. Sarah Thomas is the NFL’s first female official, and she will be a line judge for the 2015 season.