A regular panelist for the Pre-Owned Automobile Dealers Alliance’s Webinars plans to hold three workshops during next month’s National Automobile Dealers Association Convention. Doug Hadden, senior manager at DealerTrack, is scheduled to be in San Francisco for NADA’s annual event as a featured speaker. Hadden’s agenda includes several workshops on driving sustainable profits in the used-vehicle market leveraging easy-to-use technology and proven techniques to develop a winning inventory management strategy.