Getting the springboks to play better rugby is a deeper issue than the coach. The problem is Super 15 and curry cup coaches get entire seasons to slowly mold players, developing their skills and decision making abilities. Springbok coaches on the other hand get a few short weeks to attempt to get a group to function as one as best they can. Over those weeks they might get an hour with individual players, and the bottom line is as much as we want them to, you can't get someone to play and think like a NZ player in a hour. International coaches invariably have to prioritize focussing on the things they can get done that are quick, rather than the finer details we would love them to work on, because time is such a constraint. Once tournaments get going the focus shift even more to preparing for the next game and analyzing the various strengths and weaknesses of the next opponent, rather than trying to teach Jean how to pass and offload. If time is spent working on those things, it's maybe 30 minutes, and sadly 30 minutes just isn't going to get lasting results if a player isn't applying those skills consistently over the season when playing for other coaches and teams. In the heat of battle, a player's hands and feet are always going to favor doing what they have been doing all year, rather than what some coach told them to do for 30 minutes last week Wednesday between analyzing the previous game, media briefings, traveling, trying to remember if Jamie Robert is favoring his left or right side, taking in the new stadium, etc.
The only way things will come right at the top is if Super 15 coaches start doing their jobs better, and collectively as a country we start playing a unified and attacking style, allowing and teaching players to think on their feet.