Overall I agree, however I am Leary of outsourcing something as critical as backups and disaster recovery. I would outsource development or support work before I would outsource backups. If something goes wrong it is not the outside consultant's primary\only job that is on the line, nor is it his company that could loose thousands or more dollars in lost revenue etc...

Hire an outside consultant to train you how to handle backups etc... if needed but in the end this is a responsibility that I would keep in house.