When the Cincinnati Bengals signed safety Bryan Cook and defensive end Boye Mafe to free agent contracts last month, they sent a private jet to pick them up and bring them to Paycor Stadium to sign their deals. When the Bengals brought running back prospect Kaelon Black in for a Top 30 visit, the team sent an Uber for the five-hour drive from Chicago, as reported by NFL Network’s Tom Pelissero . Welcome to the NFL,rookie. There were, of course, extenuating circumstances. Black was traveling to Cincinnati from Las Vegas, where he had a Top 30 visit with the Raiders. His connecting flight was canceled, so he spent the night at O’Hare Airport and the Bengals, who were up against the clock given that today was the last day allowed for Top 30 visits and there were no doubt hundreds of other passengers scrambling to find flights after Tuesday’s cancelations, sent the Uber to bring him to town. Black is the No. 10-ranked running back in the class by The Athletic’s Dane Brugler in The Beast .…