Well the extreme long periods between the releases were indicating that something was wrong, set aside the accusations.
1976 The Jacksons
1977 Goin' Places
1978 Destiny
1979 Off The Wall
1980 Triumph
1981 Live
1982/83 Thriller / E.T.
1984 Victory
1985 We are the world
1986 Captain EO
1987 Bad
1988 Moonwalker
1989 Duh
1990 Duh
1991 Dagerous
1992 Duh
1993 Duh (+ allegations)
1994 Duh
1995 History
1996 BOTDF
1997 Ghosts/video (if I remember correctly)
1998 Duh
1999 Duh
2000 Duh
2001 Invincible
... Duh! Duh!
We clearly see that MJ wanted to do many things (Ghosts --completely underpromoted), he had material to make albums, excellent albums (4 songs on BOTDF are the proof), but compared to the 70s and 80s, during the 90s he was constantly being slowed down or completely underpromoted despite beautiful albums such as Dangerous and History (knowing that Dangerous promotion was still relying on MJ's BAD success).
Michael clearly should have stayed with Quincy or at least in the same milieu rather than to go towards some coldblooded businessmen who knew nothing about music and soul of it, and who still don't know anything about music, but how to make dollars. They try to make out of MJ a solo boy band or a girl band. But MJ cannot be fabricated, MJ's music is innate in his soul and blood. Something that the Cascio tracks completely miss. YOU DO NOT FABRICATE MJ!