By Matt Audilet Josh McDaniels’ arrival in Las Vegas as the new head coach of the Raiders seems like a forgone conclusion at this point. Along with an onslaught of supporting reports on Saturday, NFL Network insider Ian Rapoport says the Patriots OC could be hired as early as sometime this weekend. After a successful dinner with team leaders on Friday night, McDaniels is set to interview with Mark Davis and the Raiders later today. According to recent reports from NFL insider Aaron Wilson of Pro Football Network, both sides are reportedly “all-in” on committing to a partnership. McDaniels has …