Once I started thinking about it, Do you really need to Keep and eye on them, Cant you just leave them to die then revive/recall them?
I say this because I run a team of 6(Maxed specs lvl50s, 6 More in training) explorers, one of which I just left to die, She had most of her health but no stimps so why not. Insted of recalling she went on to collect legendary and other rare items, When she died I paid the 1000caps fee(Which is nothing compared to the thousands of caps she found) and brought her home.
Is there a problem with doing it this way? Seems the best way to do it, Who knows what they could of picked up if you recalled early to save them a easily revivable death.