Tim Armstrong announced Thursday that he was leaving his position as Google’s Senior Vice President and head of United States sales to become the Chairmen and CEO of AOL. Sources report that Armstrong can be credited with 97% of Google’s revenue and since the executive left Google for a rival search engine Wall Street is voicing concerns. The outlook is bright for AOL as Armstrong replaces not only Randy Falco as CEO, but also COO Ron Grant. Armstrong, who was interviewed earlier by paidContent.org stated, “The industry is changing very rapidly and I think that’s creating very large opportunities. AOL has a globally recognized brand and I think there’s a great opportunity for AOL to play a big role in the future of the transition to digital media.. ... I’ve worked very closely with Time Warner and AOL over the years and it was a nice match of what they needed and something that was interesting for me to tackle.”, when asked why AOL made the move now. It should be interesting to see how this move affects both companies stocks over the next few months.