I am not sure why this is thought of as a good idea. I have well over 100 sql instances and within sql server it is fairly efficient to manage the maintenance and backup of the databases. Transfering all those jobs and tasks and permissions and managing them from Control M wouldn't seem to be a good idea to me but i am open to hear others opinions on this. Not to mention management of the disk space the backups take and the handling of backup and/or other maintenance job failures.

Ron