According to this Polygon report, Eidos Montreal founder and general manager Stephane D'Astous resigned from the company last Friday, citing what could best be described as irreconcilable differences between the GM and parent company Square Enix. D'Astous is being replaced by David Anfossi, the current Eidos Montreal studio head and producer for Deus Ex: Human Revolution and Deus Ex: The Fall. D'Astous helped found the studio in 2007.
D'Astous said he left the company after being unable to reconcile differences between Eidos and Square Enix Europe. "Since last year's financial short-coming performance of Square Enix Europe, we (HQ London and GM Eidos Montreal) have had growing and divergent opinions on what needed to be done to correct the situation," he said. "The lack of leadership, lack of courage and the lack of communication were so evident, that I wasn't able to conduct my job correctly. I realized that our differences were irreconcilable, and that the best decision was unfortunately to part ways."
Earlier today D'Astous told Polygon that parent company Square Enix "has some things to learn about how to sell their games."