Following the original seven-step plan would have meant delaying the "D" and subsequent missions, and endangering the program's goal of a lunar landing before the end of 1969.
fˈɑːloʊɪŋ ðɪ ɚɹˈɪdʒɪnəl sˈɛvənstˈɛp plˈæn wʊdhɐv mˈɛnt dᵻlˈeɪɪŋ ðə "dˈiː" ænd sˈʌbsᵻkwənt mˈɪʃənz, ænd ɛndˈeɪndʒɚɹɪŋ ðə pɹˈoʊɡɹæmz ɡˈoʊl əvə lˈuːnɚ lˈændɪŋ bᵻfˌoːɹ ðɪ ˈɛnd ʌv nˈaɪntiːnhˈʌndɹɪd sˈɪksti nˈaɪn.