5. Duncan Jones
Why should Jones join the DCCU? Jones debuted Moon, the feature film starring Sam Rockwell and the voice of Kevin Spacey, back in 2009, moving quickly onto a larger project with the mind-bender Source Code. While the small-scale charm of Moon was effectively extracted from the latter effort, Source Code was a passable outing that led to Jones being slated for a long-awaited World of Warcraft adaptation. Warcraft was recently pushed back to 2016 due to a lengthy post-production. There's a fantastical element to all of these films, one that Jones has handled well so far and will hopefully hit out of the park with Warcraft. He's young and eager for new projects, and his style is one that could meld seamlessly with Snyder's groundwork.
What should Jones direct? There's little doubt that Jones can build a fantasy world - but would DC and Warner Brothers trust him to create Wonder Woman's Themyscira, Hawkman's Thanagar, or J'onn J'onzz's Mars? Doing so would be bold, but Jones could be worth it.