We're making several updates to our Bullpen watch list: adding five names, including Caterpillar (CAT), and removing two. The Bullpen is a collection of stocks identified by the CNBC Investing Club team as having the potential to join Jim Cramer's Charitable Trust, which we use as our portfolio. These are companies we view as high quality and will monitor outside the current portfolio. We're looking for opportunities to buy these stocks, but there's no guarantee when, or if, we'll start a purchase. Also, adding a stock to the Bullpen does not necessarily mean we would buy it at the current…