I suppose that depends on what type of writer you are.
Me, I can't plot a thing in advance (believe me, I tried). I know the general ending and where I start, but what goes in between, I have no idea.
To me, knowing my characters is key. I need to know them inside and out, and I'm not talking about their favorite color, but about why are they scared people, or arrogant, and such. I also try to give them psychological motivations that I can use later to induce changes.
After that, the characters become the engine of the story. I put them in the initial context, and they do all the work, and react to one another. Characters will often surprise me by dropping bombshells out of the conversation, and I'll have to take those into account as I write. The most difficult part is nudging them to go back towards the ending I had planned. So far, it mostly worked (i.e. I didn't have an ending that was that different from my first vision).
If you do it like that, the scenes do flow easily from one to another, so if keeping scenes consistent is your problem, this could help you.
I also found Dan's video to be a huge help, though I do use it for rewriting, not for the first draft.
So, maybe you can try my "write by the seat of your pants" technique : it's fun to see the characters build the story, though it can be stressful at times not knowing what comes next (try discovery-writing a whodunit !).