Scrappy, Innovative GOP Chair Resigns, Focuses on Consulting By JIM KEVLIN • Special to www.AllOTSEGO.com It was 2013. The issue was fracking. And four prominent local Republicans knocked on Vince Casale’s door. “It was conveyed to me that the party was in some trouble,” said Casale, who last week advised the Republican County Committee he is resigning as chairman. “My work is done,” he said. “It’s time for a change.” He recommended Lori Lehenbauer of Worcester, Republican county elections commissioner,…