Lenders must be careful to invest in training and pre-migration testing before moving forward with an outsourcing effort, according to Gary Clark, executive vice president for technology at IndyMac Bank. But if you handle the project correctly, it can result in substantial cost savings, he added. Addressing the Mortgage Bankers Association’s Technology Conference in Orlando, Clark spoke candidly about what his company has and hasn’t done well as it has subcontracted many functions to companies…