Jeff Weber, president of content and advertising sales at AT&T, has left the position. Weber oversaw program negotiations for the U-verse TV service as well as the AdWorks operations.Aaron Slator has replaced Weber, who has moved to a special project role, AT&T said. The company declined to provide more detail.Slator had been managing director in corporate development, overseeing mergers and acquisitions, business development and strategy for the Business Services unit. He joined AT&T in 1999 and held several roles involving media and advertising, among other responsibilities. In 2008, he moved to a mining equipment company that was eventually sold to Caterpillar, then came back to AT&T in 2012. Weber took the post last year, succeeding Dan York, now at DirecTV. He had been vice president of U-verse and video products. He joined SBC, which later purchased AT&T and took its name, in 1986. U-verse had more than 4.7 million TV subscribers at the end of March, making it one of the 10 largest TV service operators. At a recent investor event, Weber spoke about how U-verse tracks viewership via set-top-box (STB) data to help determine whether to meet programmers’ demands to carry certain networks. “It gives us much greater insight in terms of the value of a particular channel or piece of content, and we’ve been able to get real clarity on whether we should pay that rate, whether we should ask for a lower rate, whether it’s something that we have to carry -- it works both ways,” Weber said. “It’s been very beneficial for us in terms of the decisions we’ve made.” In a high-profile move in Houston, U-verse has declined to carry a regional sports network (RSN) in the market. AdWorks offers inventory across TV, online and mobile platforms. Weber said AT&T is looking to sell audiences across the portfolio, which could redirect an advertiser away from TV. “If an advertiser wanted to buy ‘Ellen’ … we know based on our data who that audience is,” Weber said. "We can go find that same audience outside of the ‘Ellen’ show and maybe extend reach or drive price a little bit better … Typically, people buy a show, we’re able to turn that show into an audience -- go find that audience online, on mobile or on TV.” AdWorks has pushed interactive ad options on U-Verse TV, including t-commerce and branded channel options. AT&T operates ad networks in the online and mobile arenas.