The Cubs did try to trade Addison Russell early in the offseason
It Finally Looks Like the Cubs' Turn - The New York Times
Trade Retrospective: Cubs' rebuild by sending Jeff Samardzija and Jason Hammel to the A's - Beyond the Box Score
Cubs News: Addison Russell is at another career crossroads
MORE
Examining trade chips in Cubs' quest to solidify rotation: Addison Russell - The Athletic
A's 'absolutely' would trade Addison Russell to Cubs again - Chicago - Chicago Sun-Times
Chicago Cubs cut ties with Addison Russell: Shortstop becomes free agent - Chicago Sun-Times
Cubs 2B Russell on boos at Wrigley: 'That's on them
Former World Series champion Addison Russell eyes MLB return — one day
Cubs' Javier Baez-Addison Russell Poised to Join MLB's Defensive Infield Elite, News, Scores, Highlights, Stats, and Rumors
Chicago Cubs trade Jeff Samardzija, Jason Hammel to Oakland Athletics for Addison Russell - MLB Daily Dish
Addison Russell: Former Chicago Cubs signs with KBO
Cubs Looked to Trade Addison Russell in Offseason, Report Says – NBC Chicago