1.1 What leadership style did John Terrill use? What do you think was his primary source of power? When DGL International, a manufacturer of refinery equipment, brought in John Terrill to manage its technical services division, company executives informed him of the urgent situation. Technical services, with 20 engineers, was the highest-paid, best-educated and least productive division in the company. The instruction to Terrill: turn it around. Terrill called a meeting of the engineers. He showed great concern for their personal welfare and asked point blank: ‘What’s the problem? Why can’t we produce? Why does this division have such turnover?’