By Chris Rosvoglou Las Vegas Raiders head coach Josh McDaniels has work to do when it comes to filling out his staff for the 2022 season. The good news, however, is that he may found his top option for defensive coordinator. According to NFL Network insider Tom Pelissero, the Raiders are interviewing Patrick Graham for their defensive coordinator vacancy. Graham has been the New York Giants’ defensive coordinator for the past two seasons. They want to retain him for the 2022 season, but they’ll have some competition in that department. The Raiders aren’t the only team that has interest in Grah…