re: Unintended consequences.
It was not a wise decision by Griffin to single thread manned access on Ares.
A three man capsule for the EELVs should have been developed, or at least under study to bring into development at this point.
The Columbia Accident Investigation Board recommended the 2010 date becuase of shuttle aging. It will be interesting to see if rigorous inspections can extend beyond that, or if stretching ISS construction would reduce wear to the point of fllight acceptability.
The CAIB members will probably be called back in for this study.