He's better on the left for me, as he's not especially quick, yet is a bit more technical and so has the ability to cut inside to cross and shoot, so I don't think he's an alternative to Walcott. It's the same reason I wouldn't want to see Bernard on the right. I think to play there, you need to be as quick as Walcott or a Salah-style left footer.
He certainly will need to show more than one decent cameo to warrant dropping one of our forwards to accommodate him. Bench option for now. And that's totally fine.