TV Week’s Michele Greppi writes about Nielsen blowback…

Clients wonder if the delays also could be due to too few personnel—or too many less-trained personnel—handling increasingly complicated core tasks as Nielsen rolls out ever-more-sophisticated products and services—such as its national TV/Internet Fusion database that would allow clients to focus on the relationship between consumers’ usage of both platforms.

Clients also wonder if the problems with the fast nationals delivery hint at other hidden problems in the final nationals or other data.

Such issues are sure to come up in conversations during Nielsen’s national client meeting on audience measurement Thursday and Friday at Caesars Palace Las Vegas.

Nielsen spokesman Jack Loftus downplayed the human error question, characterizing its frequency as “not a lot” and saying it was “way down the list” of bugs in the system. He said error often takes place in the homes in the sample.

The root causes all contribute to stress on the company’s systems, he said, but, “We’re trying to get the data out as best we can and as fast as we can.”