The only consistent feature in all of your dissatisfying relationships is you. ((Despair.com))
I often see organizations who have many vendor relationships that are either marginally successful or complete failures. What these organizations never enjoy hearing is that they are partly to blame for these failed relationships. While I’ll always admit that failure is an equation that two parties contribute to, if an organization consistently fails in its vendor and outsourcing relationships, thy have a core governance problem. Most organizations that put sufficient energy into their vendor governance and define how they will operate in their relationships and make decisions have adequate or good relationships with vendors. While there may be poorly performing relationships somewhere in your vendor portfolio, if they are all bad, look inward ay yourself or your vendor management team, and stop with the excuses that vendor mistakes give you.