Even when Michael Durham Prince is addressing material that he himself recorded with Michael Jackson, his word does not always have weight.
I will give a very characteristic example:
In one of his interviews (few years ago), he could not remember the third song that he himself worked on along with Michael Jackson at the Bel Air Hotel.
During those sessions at the hotel, Michael Jackson re-recorded his vocals for three songs, with the help of Michael Durham Prince, but the producer in that interview could remember only the two of them (‘Best Of Joy’ and ‘I Was A Loser’).
About Joseph Vogel, he also wrote, some years ago, that the three Cascio tracks (‘Breaking News’, ‘Keep Your Head Up’, and ‘Monster’) have the authentic Michael Jackson’s vocals on them.
Joseph Vogel also wrote that the ‘BAD’ album sessions began in late 1986, when in actual reality those sessions began on January 5th (1987) as confirmed also by Bruce Swedien who was physically there.
And I can assure you that there are also more examples which prove that Joseph Vogel has been wrong or inaccurate about certain things concerning Michael Jackson's music.
So, Joseph Vogel’s statements generally should not be taken for granted.
I do not frame things in such a way that it defies the reality of the situation.
My phrasing here does not imply that the remaining 90% of material from the ‘BAD’ sessions exists in a releasable state, because I referred to recorded material in general.
In 1987, there were not ‘A-Team’ and ‘B-Team’, because members from both teams joined forces and created one team that was working on many songs (including the eleven ones that were included on the album).
Christopher Currell, for example, who initially started as a member of the ‘B-Team’ was closely working throughout 1987 (and until the album’s release) with Quincy Jones who came from the ‘A-Team’.