REALLY the replacement capsule system should of been sized to fit on
at least 2 seperate but simiraly sized boosters, so a booster problem
couldnt ground the entire manned program. existing expendables could
of been upgraded to man rated at little extra cost. with the high
paytload cost these boosters are close to man rated anyway. upping
existing expendable launch rate would cut overall boosters costs, thru
economies of scale. all the money saved by not designing a booster
from ground up could of been spent for a much better service module.
besides solids on a manned vehicle are just a bad idea, since once
started they cant be shut off............

nasa left down everyone by going the pork piggie payoff route