Should the Democratic Party embrace and promote the different factions of the party rather than trying to be perceived as unified?

The Democratic Party brand is badly damaged. Could the Democrats fare better if they were very upfront that they don't all agree? Bernie Sanders has remained popular with a wide range on the political spectrum because he's an Independent, but he's also very open that he is in the Progressive Caucus. There are also the New Democrat Coalition, the Blue Dog Coalition, and many others.

Should each faction work in a coordinated effort to push their own brands? I understand it may cause more Dem infighting, but maybe that's okay. It could allow distance on policy between the center and far left.