Major shortages and lack luster launch titles may have caused Ken Kutaragi, the develop of Sony’s PlayStation game console to step aside.

Ken Kutaragi, the developer of Sony Corp.’s PlayStation game console, stepped aside from day-to-day management of the unit after production delays forced the company to slash shipment targets.

Kaz Hirai, head of the U.S. game division, will take over as president of Sony Computer Entertainment Inc., the Tokyo-based company said in a statement today. Kutaragi, 56, will become chairman of the unit.

"Given that PlayStation 3’s main market may be overseas, turning to people who know that business is understandable,” said Naoki Fujiwara, who manages $720 million at Shinkin Asset Management Co. in Tokyo.

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