it was reported that the liquid diet given them in the hours prior to their ascents was NASA-designed. NASA consultants were on hand for most of the wait, as they helped deal with the isolation issues and mental state of the men in the hole.
also, the american team of drillers beat the original estimates by almost two months, far more rapidly than the Plan A group.
The american driller has been interviewed extensively, he is the Patton of drilling... he was moved to Chile from a drilling job he was doing in Afghanistan.