In a world of limited resources which we do live in, if Dems shift money to fight "safe seats" we should have incremental pick ups in the toss ups as the Dems divert funds from toss up seats.
They are lacking two things. New tactics for Get out the Vote and a message that connects with the General population. In the 2nd District, the made steps toward both goals. You can see this as a high water mark, or the nose of a new camel.