Microsoft has tapped <A HREF="http://www.infoworld.com/article/07/11/20/Microsoft-hires-former-Sun-IBM-exec-to-lead-sales_1.html?source=rss&url=http://www.infoworld.com/article/07/11/20/Microsoft-hires-former-Sun-IBM-exec-to-lead-sales_1.html">a former Sun Microsystems and IBM executive</A> to lead its North American sales and marketing. Robert YoungJohns, who most recently was president and CEO of performance management software vendor Callidus, is now president of North America sales and marketing as well as a corporate vice president at Microsoft. In his new role, which begins Dec. 3, YoungJohns will manage an 8,500-person sales force and report to Microsoft COO Kevin Turner.