Raiders’ first-round foundation pieces on display

ALAMEDA, CALIFORNIA – APRIL 26: The Raider’s three first round picks, from left, Josh Jacobs, Clelin Ferrell, and Johnathan Abram pose with Raider jerseys at the end of a press conference at the Raiders headquarters in Alameda, Calif., on Friday, April 26, 2019. (Laura A. Oda/Bay Area News Group)ALAMEDA — There were no minefields for the Raiders to be concerned about Friday when they brought out first-round draft picks Clelin Ferrell, Josh Jacobs and Jonathan Abram for an introductory press conference.

Part of the foundation that will be the future of the franchise, the trio was everything coach Jon Gruden and general manager Mike Mayock said they were as they sat at a table and fielded…