If you believe leadership matters here’s a group of guys to bet on:  Thomas Linebarger Cummins Inc. (NYSE:CMI) Donald Washkewicz Parker Hannifin Corp. (NYSE:PH) Hugh Grant Monsanto Co. (NYSE:MON) Samual Allen Deere & Co.  (NYSE:DE) David Calhoun Caterpillar Inc. (NYSE:CAT) Rex Tillerson Exxon Mobil Corp. (NYSE:XOM) Robert Iger Walt Disney (NYSE:DIS) Joe Watson Chevron Corp. (NYSE:CVX) According to my way of thinking these chief executives are the top CEOs in the country because they’ve been able to accomplish an amazing feat during a slow to no growth period in the stock market and the US economy. Specifically they’ve presided ...