Apple has picked up the former head of Yahoo's Global Data Center Infrastructure, Scott Noteboom, according to his LinkedIn profile. Noteboom's been with Yahoo since back in 2005, but now lists his job as working at Apple as a "Distinguished Gentleman" (a well-earned title, obviously, though probably unofficial). Noteboom was instrumental in managing multiple data centers while at Yahoo, and he'll likely be doing the same type of work at the Cupertino campus, as Apple moves further up into the iCloud over the next few years.
Noteboom's hire is likely a long time coming -- Apple's been steadily building up its resources for these data centers, including