It has some issues. But I can totally see it working.

The way I see it is more like a closed group. Not like the Hive account@artzone approach, more like the Hive account@sndbox and Hive account@make-a-whale approach. Only the very best (MINNOWS) content producers can be here, and we combine that with a trail.

First, you open subscriptions for minnows to get a membership. Candidates should comply some requirements (A good reputation, a certain number of posts, etc.), then they are asked to create a special post for participating (Or perform a certain task) and then a group of highly respected steemians will select a few among them.

These few will be allowed to post once a day, and all their posts will be upvoted (Via trail) by participant whales and dolphins who delegate to the main account. A minimum payment is guaranteed.

An editor (or team) will be evaluating these posts (There won't be a lot of participants, so this task won't be hard) just to check everything is fine (It should because these minnows are the very best we could find).

In the rare case something goes wrong (Anything), then the curation team can decide NOT TO GIVE the rewards to this minnow, and distribute her/his share of rewards among the other minnows (Or whales). Then, kicked him out of the group.

There would be a renovation (Or ampliation) of the group of minnows every couple of months or so. How big or small this group can be, it depends on the delegation.

The other way to do it is to ask all minnows who would like to be considered for the upvote, to post using a certain tag, and then have a team of people dedicated to select the best posts. But there would be A LOT of posts everyday to evaluate.