sentences:  He served in various supervisory and management roles at the TTC, including in the subway and equipment maintenance departments, in the Transportation department, as Manager - Materials and Procurement (1986–1990), Manager - Service Planning (1990–1994), Manager - Human Resources (1994–1996), and General Manager - Operations (1996–2006).On June 10, 2006 he replaced Rick Ducharme as Chief General Manager on an interim basis after Ducharme's resignation.A year later, on June 27, 2007, Webster was confirmed in the post on a permanent basis.