다른 부분은 읽으면서 대충 감이 오는데

In justifying the move, the company’s new chairman, Tom Horton, said in a letter to the employees that the carrier had lost its competitive edge over the years. “The world has changed around us and this is our moment to adapt or lose the opportunity forever,” he said. “Our industry is now defined by the changes our competitors made in restructuring to secure their futures, and the landscape is littered with those airlines that failed to change.”
American estimated that its proposal would reduce overall costs by $2 billion a year, $1.25 billion of which would come from employees. In justifying the move, the company’s new chairman, Tom Horton, said in a letter to the employees that the carrier had lost its competitive edge over the years. “The world has changed around us and this is our moment to adapt or lose the opportunity forever,” he said. “Our industry is now defined by the changes our competitors made in restructuring to secure their futures, and the landscape is littered with those airlines that failed to change.”

이부분이 이해가 안되네요 ㅠ
아직 영어가 약해서 그런지 사전을 보면서 해도 해석이 안되네요 궁금한 부분이라서 대충이라도 가르쳐 주시면 감사하겠습니다 ㅠ