I think when you've been in a band for a really long time, sometimes you don't appreciate what's good about yourself. It's easy to play something and get too focused on some small detail. It's helpful to have somebody around who can say, "No, that was good." Just so you don't get too lost or forget what you do. You need somebody you really trust who has great taste.
Win ButlerSongwriting is reliant on inspiration, which ideally you don't have that much control over. Songs kind of half make themselves, and then you have to finish them.
Win Butler