Mel Kiper has the Raiders taking Khalil Mack in his latest mock April 17, 2014 by Paul Jackiewicz Leave a Comment ESPN Draft expert Mel Kiper Jr. has the Oakland Raiders drafting Buffalo linebacker Khalil Mack with the fifth overall pick in next month’s draft. I do agree with Kiper that the Raiders won’t take a quarterback. But why not get a top receiver like Sammy Watkins or Mike Evans. Matt Schaub is going to need more weapons. James Jones won’t cut it.