These losses are more a reflection on the way Obama governed the nation than anything involving the DNC. Good luck trying to get anyone in the DNC into admitting that for at least twenty more years.
The problems of the Democratic Party go way beyond the last 8 years - The Democrats still haven't recovered from RONALD REAGAN winning in 1980, getting his policies through a Democrat congress, and then winning re-election in 1984.
Well, the Democratic Party already had deep structural problems long before that even that were masked by the Dixiecrat strongholds.