Like Numberica said, they just have terrible chemistry. But Gobert doesn't need anyone to help him look like crap, he's just fine doing it himself. Just look at his 5 TOs last night, none of which involved Rubio nor were a consequence of bad passes from his teammates.
http://stats.nba.com/events/?flag=1...tals&MeasureType=Base§ion=player&sct=plot
http://stats.nba.com/events/?flag=1...tals&MeasureType=Base§ion=player&sct=plot