#13 seems easy and there exist apps for it. Not that the team would WANT to do this, but if you had a sufficiently compelling use case the problem doesn't seem

#13 seems easy and there exist apps for it. Not that the team would WANT to do this, but if you had a sufficiently compelling use case the problem doesn't seem difficult. For instance, if everyone on his team carries a smartphone (iOS or Android) they can all install google+ and turn on background location sharing so he can see them on a map. https://support.google.com/plus/answer/3302509?hl=en https://support.google.com/plus/answer/3302509?hl=en There's also Apple's "Find My Friends" cloud feature, and a bunch of 3rd-party apps that do the same. If they don't carry a cellphone then...um...give them one and tell them to carry it. :-)