and Scott D. Malkin. Business operations were returned to the Islanders following the 2018–19 season. According to Billboard magazine, Barclays Center passed Madison Square Garden as the highest-grossing venue in the US for concerts and family shows, not counting sports events. That statistic was based on ticket sales between November 1, 2012, and May 31, 2013. On February 24, 2015, an ironworker was killed when four joists fell on him as he was helping to install the arena's green roof. Poor reception of the arena's quality as a hockey venue affected the Islanders' average attendance in comparison to Nassau Coliseum, which fell to an NHL low of 12,059 (the arena itself is also the second-smallest in the league). The team began to seek an exit from Barclays, although NHL officials judged that the Coliseum (even with its recent renovations) would not be suitable as a full-time venue, as it lacked amenities common in new facilities. On June 21, 2018, the Islanders announced that they would begin to play a portion of their home schedule at Nassau Coliseum until the completion of UBS Arena. On September 18, 2019, Joe Tsai completed the acquisition of full ownership of the Brooklyn Nets and Barclays Center. With the closing of the transaction, Tsai became NBA Governor of the Nets and its affiliates and Chairman of Barclays Center. Additionally, on September 18, 2019, media and sports executive David Levy was named Chief Executive Officer of the Brooklyn Nets and Barclays Center by Joe Tsai. Tsai also purchased the WNBA's New York Liberty in 2019 and relocated the team to the Barclays Center in 2020. For Liberty games, ticket sales will initially be capped at about 8,000. In July 2021, it was announced that as part of a deal with the Nets and BSE Global, SeatGeek would take over ticketing duties for Barclays Center events beginning with the 2021-22 Brooklyn Nets season, ending the arena's relationship with Ticketmaster and breaking Ticketmaster's monopoly over ticketing for New York's major arenas. In January 2023, it was announced that the deal would end earlier than expected and that Ticketmaster would return to handle ticketing for Barclays Center events starting with the 2023 New York Liberty season, as well for events whose tickets went on sale on or after January 14, 2023. Sources later told Billboard that BSE Global ended the deal with SeatGeek after encountering multiple technical issues, which