Say what you will about Clelin Ferrell, but the Raiders did use the selection on a real and specific need at defensive end. A year later, the Las Vegas Raiders' top need was a speedy receiver. Again, say what you will about Henry Ruggs III, but he and his 4.27-second 40 was the call at No. 12. As pending Pro Football Hall of Fame coach Tom Flores has said, there is a fine line between drafting for a specific need and drafting the best player available. Because if you're drafting in, say, the top 10, you have needs all over the roster. So here sit the Raiders and Mayock on a decidedly nondescript pick in the middle of no-man's land -- No. 17 overall. Yeah, the Raiders have needs, specifically right tackle and free safety, that could be addressed (the Raiders' second selection is not until No. 48). But Las Vegas, like 31 other teams, would