Didn't they try that with Bryan Fuller?
The problem with Bryan Fuller:
https://www.trekbbs.com/threads/star-trek-discovery-5x10-life-itself.316862/page-34#post-14838530
It seems worth noting that Fuller's resume, even before the flame-out, wasn't stellar as a showrunner:
It's true the latter three, in particular, were critically acclaimed, but they all struggled to find an audience. Fuller had never produced a hit show.
- On the first show he was showrunner (Dead Like Me) he quit early in the first season due to some conflict with MGM (show only lasted two seasons).
- Wonderfalls was canceled after one season (only four aired on live TV, with the rest DVD release only).
- Pushing Daisies was canceled after two seasons.
- Hannibal was canceled after three seasons.
In contrast, RDM and Naran Shankar have both produced shows which were, while airing, Syfy's most popular shows. Both of them also ended on their own terms. Admittedly, The Expanse was poached by Amazon, but my understanding is that had more to do with the unusual method under which it was produced (with a third-party studio developing it, rather than an in-house Syfy production) than anything.
https://www.trekbbs.com/threads/star-trek-discovery-5x10-life-itself.316862/page-34#post-14838514