It really should be based on quality and receptivity
If an editor's take isn't that great, it can actually be unpromoted, it isn't permanently promoted just because it's under an editor title
And I think it isn't necessarily feasible to have a new featured take every week.
I would love to see new writers, of course, and editors definitely have earned their right to have their stuff promoted (take it from a girl who's written near 40 takes herself) but that doesn't mean that other writers can't share in the spotlight. I think if we all just encourage each other, make a habit to offer constructive criticism on newer works and also offer words of encouragement that the playing field will be just as fair for everyone. Also, keep in mind that anything you write, you can link other people's works as well, so that's another way to help your non-editor friends get a little exposure.
It's a great idea and I LOVE to see new writers all the time. However, reality is reality: The bottom line is that we couldn't possibly Promote every new writer's work because frankly, most of it isn't quite good enough. However, with just a little guidance from us, people with great ideas can indeed become prolific Take writers.
Just about all Takes get approved, though, so don't forget that. And I do like the idea of highlighting some new people who are producing great stuff, so we'll take this under advisement. :)