Along with the promotion of Stefan Dyckerhoff contained in a Juniper internal memo by CEO Kevin Johnson, David Yen was reported to be departing the company effective immediately. According to sources, he will transfer to Juniper competitor Cisco to run its servers business, in the midst of Cisco’s restructure.  However, the networking giant has yet to comment on the issue.

Yen has been serving Juniper since 2008, where his first position was executive vice president of emerging technologies. He then became executive vice president and general manager of Juniper’s fabric and switching technologies unit until he left. Yen is more notable for his employment at Sun Microsystem, running its chip division for 20 long years.

Sources have it that the spur for Yen’s exit is his disappointment over the promotion of Stefan Dyckerhoff as head of the newly formed Platform Systems Group in January, a position Yen aspired as well. Dyckerhoff’s preferment was well-noted in the memo.

Apart from Juniper’s and Cisco’s executive-level man power take-charge and discharge, Yahoo hired Rob Barrett as head of its Yahoo News and Finance sites. Nintendo of America appoints Scott Moffitt as new executive VP of sales and marketing while Apple absorbs former Microsoft data manager Kevin Timmons into the company. Also, as hail Mary to reshape its management, Hewlett-Packard’s CEO Leo Apotheker took in Martin Homlish as new chief marketing.