According to the DIRECT team, many NASA engineers and managers supported the concept and completed a cost analysis comparison with NASA's current Constellation program and a detailed series of evaluations for supporting facilities such as data on the existing manufacturing facilities for the External Tank at the Michoud Assembly Facility and the various launch-processing facilities currently at the Kennedy Space Center. DIRECT proposed to re-use nearly all of the existing facilities with minimal modifications in contrast to the Ares I and Ares V rockets which would have required extensive modifications and replacements over existing facilities.