The Spurs FO relied too much on overseas picks, over the last three years.
To be fair, Spurs never have many great options because of their successes. So you can only blame them so much. But Pistons are example of another successful team, who make the best with what they got.
The International angle of developing players, that well has kinda dried up after the Scola debacle.
It's pretty apparent that there is a disconnect with the committments of these guys. Dealing with two agents. Euro contracts overlapping and conflicting with the NBA expectations of both players and salaries. It's becoming too much of a hassle in the last few years.
Spurs should have had at least two rookies to bring in, rather than, saying "eh, we're winning now, we can cut costs by waiting for them without having to develop them on our own bench, in the mean time cut more costs by signing cheap FA"