Not 'in spite of' but 'because of': agile: Multics--The first seven year
In the Multics--The first seven years ( 1972 Spring Joint Computer Conference ) Corbato et al make the interesting statement: " In spite of [bold added] the unexpected design iteration phase, the Multics system became sufficiently effective by late 1968 to allow system programmers to use the system while still developing it. " I think that many from the agile community might change the " in spite of " to " because of "... :-)