Problem: To convince his manager that a new copier was needed, Darrin kept track of the lost productivity that resulted from employees having to wait for a repair person, needing to redo projects when the copier destroyed parts of them, and having to go out of the office to get copies made. He also showed the increase in cost of paper. Darrin presented the manager with a spreadsheet containing all the data, and after a week of asking for more information and considering it, the manager agreed to his proposal. Using Williams and Miller's decision-making styles, Darrin's manager is most likely a(n)