Getty The Dallas Cowboys passed on the Las Vegas Raiders trade demands. The Dallas Cowboys have maintained that the team plans to be aggressive this offseason, prompting plenty of NFL rumors. Dallas was heavily linked to a blockbuster trade with the Las Vegas Raiders for Maxx Crosby before the Baltimore Ravens acquired the superstar. ESPN’s Adam Schefter reported that the Cowboys were willing to trade one first rounder and a second-round selection but balked at including two first-round picks. “