Every city has its venues that for better or worse are prompt when it comes to set times. The Greek Theatre in Berkeley is one of those. Show time on my ticket stub read 730pm. Given my interest in the opener, Okkervil River, I arrived at the gates around 720pm. As I made my way to the side stage, Okkervil were a few seconds into their first song. I checked my watch: 727pm. That is not prompt, it's bs. Maybe the venue thinks no one's there to see the opener, but I was. As I turned the corner into the beautiful Greek Theatre, nearly all seats were already spoken for. I drifted around the lawn and eventually found some friends about midway between the stage and the back of the venue. Perfect. Okkervil's set was quick but solid. The crowd seemed fairly ambivalent, which is somewhat surprising given the similarities between the bands. And then came Wilco. The arguments from Wilco purists down to the recent converts is often about as tiresome as it gets. Yes, they've changed...