No clear idea, Is that a good thing?

I started this piece without any clear idea of where I wanted to go with it and as a result I soon found that I did not like the direction that it seamed to be heading. I have to ask myself, Is it of any value to have a clearly defined idea before beginning or should I simply guide the process and see what happens, allowing a painting to come about of its own accord ?

Making decisions and trying a novel approach to things is in part what this whole art project is about.  In this case I tried the latter. So I splashed and splattered paint across the painting and added pencil to provide definition.  OK, Its nothing special but is it a complete mess or did I save it ! Let me know what do you think I would be very interested.

#5 Modern splattered painting 

9 x 9 inches approx Acrylic paint and pencil on paper