I don't like lyrics that are just thrown together, that were obviously written as you went along, or the song was already written and the guy made up the lyrics in five minutes. I can tell. Craftsmanship speaks. I'm not happy with spontaneity musically either. ... We do have improvisational periods during sound checks and we record them and at the end of the tour we sift through them and look for anything that happened that was magic. And there are ideas that we can mine out of that, taking advantage of the spontaneity of one day's mood. But to go on stage and expect people to indulge you; that doesn't work. I prefer organization.
The craftsman in me likes the thought here (take time to make it right, plan out the progress of the tune in advance), but the jazz guy in me screams bloody murder at the thought of removing both improvisation and winging it. To me, part of the excitement of live music is that it does change from night to night. Too much of either extreme tends to be a bad thing.