If it's not a fail with Oracle, it's SAP or dynamics or some other "ERP". Do these implementations ever work, and why do these big organisations keep going for them?surely they've seen the string of failures preceding them? I suspect it's ego, and the need to pad CVs that does it. And the unwillingness of the people who should know better to say no.
Finding consultants who could help was like pulling teeth, though. The offshored Indian ones were terrible, and the European ones often didn't speak English well enough. Mexico City was had good offshoring options but couldn't supply enough bodies.
Never had a strictly Oracle project go well though. Exadata is a dirty word in these parts. Only thing that was more of a PITA was Azure...