With the season ending very early due to the COVID-19 situation, Žalgiris started their off-season work early. LeDay, Landale, Ulanovas, Rivers all left the team during the summer, but the biggest departure was of coach Jasikevičius, who left Žalgiris and signed with FC Barcelona in July. With the rest of the coaching staff following Jasikevičius to Barcelona, Žalgiris was forced to look for a new head coach. On July 14, Žalgiris announced the signing of Martin Schiller as the team's new head coach. Schiller had previously worked with the NBA G League team Salt Lake City Stars, and was named the NBA G League Coach of the Year for the 2019–20 season. Schiller brought in Arne Woltmann and Tautvydas Sabonis as his assistant coaches, with Evaldas Beržininkaitis being the only person remaining on the team from Jasikevičius old staff, as an assistant coach. Žalgiris signed Steve Vasturia and the returning Tomas Dimša as the new guards. Patricio Garino replaced Ulanovas, while Joffrey Lauvergne and Augustine Rubit replaced LeDay and Landale. The most surprising signing happened in June, as Žalgiris bought out Marek Blaževič, a talented prospect, out of rivals Rytas Vilnius. Grigonis, Lekavičius, Walkup, Jankūnas, Geben, Hayes and Milaknis remained with the team.