Oubre isn't really a power player. He'd need to add some strength and bulk. Currently, he's more finesse, like a Jeremy Lamb, but he's much scrappier and more tuned in mentally. Maybe he becomes like a Trevor Ariza or what some people hope Otto Porter will turn into.
See Porter...
https://www.youtube.com/watch?v=Rqqjgv19wWc
Yah, he's not as bulky and physical...