Another constrained resource is communications: the Deep Space Network dishes are shared between all of the current NASA missions and already has rationing. So

Another constrained resource is communications: the Deep Space Network dishes are shared between all of the current NASA missions and already has rationing. So before upping the pace of new deep missions factor in the time for getting Congress to back expanding the DSN (not ludicrously expensive, but also not so sexy as launches, boots-on-the-moon, etc) https://spacenews.com/increasing-demands-putting-pressure-on-deep-space-network/ https://spacenews.com/increasing-demands-putting-pressure-on...