Kaz Hayashi
On May 5, 2015, Takagi was announced as the new chief executive officer (CEO) of Wrestle-1. He also continued serving as the president of DDT, while being involved with Wrestle-1's management. Starting on April 1, 2017, Takagi served in the role of an advisor to new president Kaz Hayashi. In March 2017, Wrestle-1 underwent a change in management, which led to Takagi assuming the new role of an advisor, from which he resigned the following September.