No, they actually have jobs in an office and can't talk on the phone all day or e-mail each other back and forth. I'm as guilty at this procrastination as anyone. But I'm not going to tell you that you shouldn't procrastinate or put off the writing, to sit down and force it to come out. I'm all for writing freely until the words start to flow again, but we shouldn't confuse procrastination with writers block. Writers block is when we can't think of something to write, for reasons as varied as physical exhaustion, mental exhaustion, other things on our mind, or a subject that doesn't interest us.
Procrastination is the conscious act of avoiding the writing.
When we could write and we just don't want to. Personally, I think both are valid, depending on several factors. Procrastination can be useful, because if you are honestly not ready to start a piece or even ready to do the research for a piece, then put it off until you are. Obviously, I'm not advocating that you just put things off all the time. But sometimes you'll have an idea, or the kernal of an idea, and it won't be fully fleshed out, and it's best to keep thinking about the idea, making notes, improving the idea, before going ahead and creating something that just isn't ready to be created.