The Contractor's Song: The Times They Are A-Changin' â Managing Commodity Volatility in Water Infrastructure By Jeremy Holland Bob Dylan clearly didn’t mean to describe in his song, “The Times They Are A-Changin,” the tremendous upswing in commodity prices that has occurred in the last six months and that could potentially “drench” our projects with added uncertainty and costs, but it is certainly true that one thing we can all count on is that in all times, things change. In our role of building water infrastructure projects, there is no doubt that managing change is one of the biggest requirements. So, let’s walk down the path of pricing change that has gotten a lot of people’s attention recently.