I’ve either been involved with or adjacent to dozens of Accenture projects at 5 companies over the last 20 years, and not a single one had a satisfactory outcome.
I’ve never heard a single story of “Accenture came in, and we got what we wanted, on time and on budget.” Cases of “we got a minimum viable solution for $100m instead of $30m, and it was four years late” seem more typical.