MBL - replacement of controller and case without hard disk

I had already made two RMAs for a My Book Live. The hard disks were in every case functioning well, but the controller made problems. I suggest to make a WD My Book Live, where the hard disk is removable (without destroying the case), so that only the case with its controller can be replaced by an RMA or in opposite only the hard disk is to be replacing, if case and controller are still working fine.

hfrsamba

Idea approved for voting.