He said deals should be monitored every quarter with a 10 point checklist and companies should check all change requests that go to the vendor.

"Only about 20 percent of companies in Australia measure outsourcers effectively because they don't measure the contract beyond SLAs," Zarella said.

He believes organizations need to appoint a full-time "relationship manager" to remove dependencies on consultants.

"It is too expensive to keep IT in-house but it has to be done properly by appointing a relationship manager," Zarella said.

"Because this is a new title there is a serious shortage of people with vendor management skills, the days of a contract manager working in accounts payable is long gone.