With more games under his belt and more data on the NBA's new stat tracker, we can be a little more confident in reaching conclusions from slicing and dicing Wall's assist numbers in various ways.
Wall is second in the league in assists with 8.9 per game, which is great. What's even more encouraging is that Wall is still highest in the East in terms of points generated from assists per game at 21.8. 45% of his assists come from threes, which is pretty amazing and good for 3rd among the top 25 players in terms of assists per game, but down from the astounding 53.4% he was getting after 4 games. Teams are trying to take the corner three away, which is part of the reason why he has scored so much in the last two games -- staying close to the three point line leaves more room for Wall to drive to the hoop or get open 15 footers.
Wall's teammates are still converting a low percentage of assist opportunities. Among the top 25 assist per game leaders, the average conversion rate, assists/assist opportunities, is 52.8% -- Wall's teammates are converting 45.6%, 7.1% below the average, and actually lower than the 46.3% they converted after 4 games. If you calculate the efg% equivalent, (assist+0.5*(assisted 3 point shots))/assist opportunities, the average is 61.4% and Wall's teammates convert 55.9%, 5.5% lower. However, Wall's teammates are not dragging down his numbers enough to affect anything -- if Wall's teammates generated an effective efg% of 61.4%, Wall would have 9.8 assists per game, still tops in the east but still far behind Chris Paul, who is having an MVP-quality season.