4 LINCOLN, Neb. — While Nebraska’s immediate quarterback future gained focus this spring upon the hint of Adrian Martinez’s reinvention and the growth of two young backups, its recruiting work at the position has narrowed, too, as the June 1 launching point of the return to regular activity looms. It’s been an arduous 14 months for Mario Verduzco and the players he recruits. In Verduzco’s bids to gather QB talent, he is a creature of the living room. The pandemic has thrown the veteran quarterbacks coach off his game. “I guess I do OK with Zoom,” he said.