This press release http://www.nival.com/eng/news/1406/document2190.shtml
, from July 2009, about the Nival Online becoming Astrum Nival (And already a part of Astrum Online Entertainment), shows that Mr.Dmitri Devishev
was already the CEO of the renamed Astrum Nival company.Mr. Sergey Orlovsky
was the founder and the president of Nival Online (later Astrum Nival), as well as founder of the Nival Group (separate company, 1996, which also encompasses Nival network), which has a minority stake in Astrum Nival.
The wikipedia article states that "Sergey Orlovsky handed operational control of the company (to) Dmitri Devishev(u)". but it doesn't really give any details about the circumstances of this move, or any change in his function.
Since Mr. Devishev was already the CEO of Astrum Nival, he would be a logical choice if, for example, Mr. Orlovsky simply decided to focus more on the activities of his other companies (for example Nival Network, the member of Nival Group), since "operational control" should already be a CEO's job. Plus, in November 2009, he already presented his new project, as the Wiki article states, so perhaps he just needed to focus more on it, figuring the work on Allods was mostly done.
However, since the article states that he did relinquish the operational control to Astrum Nival CEO (Mr. Devishev) I'll put the note in the appropriate post.