I wonder whether there is an internal risk assessment on the subject of having a cargo upmass shortage between the full phase-in of CRS and the end of the STS. I remember from the Augustine Committee's deliberations that even with the currently scheduled CRS flights, for the full 6-crew capability there will likely be a bottleneck somewhere in FY2011 and/or FY2012.Anyone has any more detailed information?
You can bet that there are tons of such documents, with variants based on no ATV, or no HTV, or no Dragon, or no Cygnus, and combinations of these. However, the ISSP has already gone through "Nothing but Progress" for cargo and survived, so the feeling of dread is probably not so high these days.
I'll bet the feeling of being unable to support a 6-person crew is more prevalent.