It's a time of change at Sony, apparently. The company has just announced Sony Computer Entertainment America president and CEO Jack Tretton will be leaving Sony behind.

"This is a result of a mutual agreement between Mr. Tretton and SCEA not to renew their contractual relationship," the company said in a press release.

Tretton's successor will be Shawn Layden, who is currently exec. VP and COO of Sony Network Entertainment International. He starts the job on April 1.