I think bandwidth delegation pool has already be running and some kind witnesses usually delegate SP to minnows who ain't having enough to help with the smooth running of their steem account. Or is this something totally different?
lemme don't confuse myself. You need to break the secret steem advantage down
As is, delegating SP loans the delegatee both voting power and bandwidth. I think that what @ned is suggesting might allow for these functions of SP to be delegatable separately. Just a guess though.