There is an issue open on the Steem github repo (my apologies for not posting the link, i'm on mobile at the moment) about creating RC delegation pools. This would allow RCs to be delegated separately from SP and delegated to a pool that multiple accounts can subscribe to and use as needed rather than having to constantly manage how many RCs are delegated to each specific account.

I think this is a really really important addition to Steem and I hope to see it implemented sooner rather than later.