I've been working with this singer trying to help put together a band. When I came aboard about 3-4 weeks ago, the singer had a guitarist and drummer already in place. They are both gone now, and so is another guitarist. The drummer wasn't going to cut it anyway. We auditioned a guitarist a couple of days ago. He had first class equipment but couldn't play very well. I would love to get a few musicians I know (or know of) to try out but they are already busy for the most part. I have very little experience auditioning potential band members, but I know the "if you show up you're in" approach doesn't work. Any suggestions?