For Oklahoma City Thunder fans, this summer has brought the first bout with NBA turnover as two key members of the organization in the past three weeks have accepted other opportunities. But for Thunder general manager Sam Presti, such change is commonplace. And the Thunder faithful would be wise to get accustomed to the occasional departure. Oklahoma City, it seems, is now successful enough that other franchises might pluck its best people for openings from now on. In late June, lead assistant Ron Adams returned to Chicago to serve in the same role under new coach Tom Thibodeau. On Monday, assistant general manager Rich Cho officially became Portland's new general manager. The question going forward is how the Thunder will sustain success as it loses some of its best staff members. "The most important thing is that the organization maintains its identity and culture,” said Presti. "None of us are greater than the organization or its core values, and we try to consistently add and develop people that will create some organizational endurance if we lose some people through the process. There will be times of change in this business because things often run in cycles, but a sustainable team also has a sustainable mentality.” As a fast-rising front-office executive in San Antonio, Presti had a first-hand look at how a franchise overcomes turnover. While with the Spurs, Presti watched talents like Danny Ferry, Mike Brown, Kevin Pritchard and Monty Williams all go on to better opportunities with other franchises. When Presti was named GM of the Seattle SuperSonics, he hired Paul Rivers and Brian Keefe, who both worked in the Spurs' basketball operations department. San Antonio, however, has made the playoffs ever year since the 1997-98 season. The Spurs have won four NBA championships and notched at least 50 wins in each season over that same span (excluding the lockout-shortened 1998-99 season with the Spurs won 37 games). The only difference between the Spurs and the Thunder is San Antonio's staff began moving on only after seasons of success and deep playoff runs. With the Thunder, staff members have come into consideration for other openings after only two seasons. "It's flattering when outside teams are interested in your people,” Presti said. "It is never easy to see good people leave. But again, I would point to the importance of having a strong philosophy and culture in place that endures through time and change. "We certainly hope that we can retain our key people over time, but we also want our team to be a place where people develop on and off the court. If we can continue to do that, we will continue to attract and retain high-quality individuals.” Although the departures of Cho and Adams mark the first time Oklahoma City has seen key members voluntarily leave the franchise, it's the second time since taking the job in 2007 that Presti has experienced losses to his staff. And Presti, who has a renowned track record dating to his days as an intern with the Spurs of being thoroughly prepared, is no different than any other good manager. When assistant general manager Scott Perry returned to Detroit in 2008, Presti knew he wanted an up-and-coming executive named Troy Weaver, then with Utah, to replace Perry. That same year, Presti also watched Gerald Madkins, a scout hired only a year earlier, move on to become Houston's director of scouting. "We have been fortunate to have some good people, and we are thankful for their contributions and commitment to the organization,” Presti said. "I think it is a credit to the organization as a whole, and hopefully we can continue to add and develop quality people.” While it seemingly will be almost impossible to replace Cho's business mind and Adams' basketball brain, one positive is that potential future departures present an opportunity for the Thunder to land new blood that can have even more of an impact on the organization. Without Adams, for example, assistant coach Brian Keefe now has more of a chance to contribute fresh ideas and methods. "At times, these changes are also opportunities for us to continue to bring in new, like-minded individuals to help enhance and improve the organization,” Presti said.