Edit: Seeing downvotes on this, but it's in support of tptacek's comment. The DNC and State democratic parties are separate and the latter run the elections. You might believe that the DNC is fixing the process, but the reality is that they have little influence in how the States choose to run their election/nomination processes.
In all honesty, the Iowa caucases are likely a huge pain in the ass for them and this failure is probably driving a lot of DNC folks crazy right now.
The DNC and the state parties are often at odds with each other. There's a good series of "Reply All" episodes about this, focusing on the Alabama Democratic Party.
https://mobile.twitter.com/taraemcg/status/12239909781277245...
https://theconservativetreehouse.com/2020/02/05/more-manipul...
https://mobile.twitter.com/kendallkarson/status/122481061735...
"Shadow Inc.’s website has scant information about the firm and its employees. But a review of social media accounts shows that three of the Washington, D.C.-based firm’s top executives worked on the 2016 Hillary Clinton campaign.
The CEO of Shadow Inc., Gerard Niemira, was the director of product on Clinton’s campaign, his LinkedIn profile says."
https://nationalinterest.org/blog/buzz/shadow-inc-mysterious...