Yes, NBA owners are responsible for paying player salaries, which are determined by the collective bargaining agreement between the league and the players' union. Each team must allocate a minimum of 90 percent of the salary cap to ensure that players receive their fair share of Basketball Related Income (BRI). This requirement is in place to promote competitive balance and ensure that players are compensated adequately for their contributions to the team and the league. The salary cap itself is a limit on the total amount of money that a team can spend on player salaries in a given season, and it is calculated based on the league's overall revenue. By mandating that teams spend a significant portion of the salary cap, the NBA aims to create a more equitable financial environment, allowing players to benefit from the league's success while also ensuring that teams remain competitive. This system helps to maintain a level playing field, as it prevents wealthier teams from monopolizing top talent simply by offering higher salaries.