A lot has been made of what went wrong this season, and if one table can tell a story, it is this one (all stats taken from Basketball Reference):
|oRtg % league avg||101.53%||95.56%|
|dRtg % league avg||101.82%||102.08%|
If we seasonally adjust 2012-13 to the same league average as 2011-12, where the drop occurred is even more obvious:
|Season||2011-12||Seasonally Adjusted 2012-13|
The Suns defence, despite being really bad lets not sugar coat this, was basically as bad as in 2012-13 as in 2011-12 - one spot better in rankings, a few percentage points of league average worse, slightly less standard deviations form the mean, roughly the same seasonally adjusted to 2011-12, so basically no score, draw.
The offence, however, was a trainwreck. After years of watching Nash run the PnR with clockwork precision, hitting the roll man for dunks and layups, and watching the Suns hit three pointers at league leading rates, this season was a complete offensive disaster.
We dropped from 9th in the league, and 101.53% of the league average, to 29th and 95.56% of the average. Seasonally adjusted, we lost 6 points per 100 possessions, which is two standard deviations of change. Basically, we had an historically bad drop.
The specific reasons for that are up for debate, but losing Nash, adding Beasley, the drop off in overall FG (.458 to .443) and 3FG% (.343 to .330) combined with less 3FGA per game (19.62 per game vs 17.74) all played a part.
Moving into the off season, whereas the offence was once a distinct strength, the Suns now have massive problems on both sides of the ball, and need huge improvement both offensively and defensively (kill me, kill me now).