There isn't much to complain about so far this season. Just about everything is going right, except their turnovers. That's a big problem that could come back to bite them in a larger way against stronger competition than they've faced four games into the year. However, they already have help on the way in the form of De'Aaron Fox.
San Antonio is tied with four teams for 24th in turnovers, and even worse, they're 26th in opponent points off turnovers. This alone should quiet the calls for the Spurs to trade Fox. This is still a young team, and Stephon Castle is growing into a playmaker.