The LoRa Alliance has announced that it now has network operator coverage in 100 countries, a milestone that it says shows the success of LoRaWAN in the low-power wide-area network (LPWAN) sector. Notably, it isn’t disclosing the ratio of public to private deployments here, but it comes as Light Reading again reports on executive departures at chief technology rival Sigfox. The problem with Sigfox is that it only has to sign one big deal for it all to pay off. Managing something like a regional tracking agreement with Maersk for shipping containers, or a Latin American fuel tank replenishment contract with an oil major, would be enough to propel it to the big leagues – quieting the investors that are…