Oracle have routinely had multimillion pound contract failures and people keep buying from them. Big vendors are too big to fail.

Those are custom software or heavily customized implementations of ERP and similar systems for very large organizations. I’m talking more about the SMB market where today it’s possible for a small team to carve out a niche and make a nice living or even bootstrap a venture that competes with a large player that has poor UX or antiquated feature designs.

The reason Oracle can continue failing at those massive projects is simple: everyone fails at them routinely and often it’s the customers fault.

Same with Deloitte