sentence1: In addition, the senior executives at these organizations demonstrated their sustained commitment to financerelated improvement initiatives by using key business/line managers to drive improvement efforts, attending key meetings, ensuring that the necessary resources are made available, and creating a system of rewards and incentives to recognize those who support improvement initiatives and true is true and true is true and true is true and true is true and true is true .
sentence2: Senior executives showed their commitment to improvements by using key managers.