From all accounts, Wemby seems a thoroughgoing professional despite being just a kid and his parents and family seem to be very positive influences. The fact that he has been facilitated into s om, indirectly, by former NBA players like TP and Diaw is also a good indication that the Spurs will a seamless transition for him.
The Spurs still have their task cut out to find the right fits around him and the right path to enduring success. They have made a solid head start in getting Sochan, Branham and Wesley in last year's draft and retaining Johnson and Vassell to form a really good young core.
But I think they should get a couple of veterans - professionals who do a good job of mentoring the young core and doing the right things. As a team that had the worst defense in the league last season, it makes sense to me that the Spurs must get a defensive minded veteran to be added to the core and thats why I feel they should go after Josh Hart who will neither be cheap nor expensive and will not use up too much of the Spurs' cap space. He can be a backup to Jones or even start in a pinch and is a hard working player. IMO, the Spurs will do well to go after him. They can jettison Graham and Birch, if need be, to teams that need expiring contracts. And not renew Langford who is too inconsistent and doesn't seem to be a solid NBA player any longer.
Pop will be smart not to treat Wemby as the centerpiece immediately and instead ease him into a proper structure where his skills and abilities will be maximized. But for that to happen seamlessly, the Spurs cannot just rely on youth. It has to have one useful anchoring veteran and not just someone like Gorgui Dieng. Hart might be that guy, I think.