Electronic Arts announced Monday that chief financial officer Warren Jenson is resigning as the video game publisher presses a hostile bid to buy rival Take-Two. Jenson, who has been the CFO since June 2002, will leave the company in September. EA did not specify a reason for Jenson's departure and said it will name his replacement "shortly." Analysts say the shakeup is not surprising. Chief executive John Riccitiello has made a number of key management moves since he joined the video gaming powerhouse last April. Riccitiello's latest came last week when he hired a new right-hand man in president and chief operating officer John Pleasant. "Riccitiello was brought in because the stock hadn't moved in three years," said Michael Pachter, a gaming analyst with Wedbush Morgan. "Now it's been four years. To help him, he's hiring people he's comfortable with. If you hire a new coach and the team's not winning, the coach is going to bring in new players."