Conversation so far:
What happened in De La Soul's middle period?
De La Soul's third studio release, 1993's Buhloone Mindstate, saw the group evolve a new sound as they continued to grow stylistically and musically.
Was De La Soul's Buhloone Mindstate successful?
Buhloone Mindstate was a critical success

Question: why was it a fauilure?
Self-contained rewrite: Why was De La Soul's Buhloone Mindstate a failure?