Wireless Watchers will have noted that it’s changing-of-the-guard season in Japan, with NTT DoCoMo’s Keiji Tachikawa about to move on just as the company enters a self-described “paradigm shift.” We believe we know what his successor, Executive Vice President Shiro Tsuda, will be up to — mainly because DoCoMo strives at every opportunity these days to tell one and allit’s not a carrier any more, but rather a budding e-commerce service platform provider. More intriguing, however, are the senior staff developments at Vodafone’s struggling Japan opco, Vodafone KK (struggling, that is, through a device dry spell that won’t see any significant new 3G models out until the fall). Big V has just shipped over a new COO, David Jones, who has arrived, we guess, with a briefcase full of spring-cleaning items. Certainly the appointment of a new chief operating officer hints at a change of gear for the company. Is this a push to boost the lagging 3G provider from neutral to at least first gear?