IMO, so far, it ain't really working. There's no chemistry, no synergy, no flow between them. It all seems too artificial and I think they're trying too hard to make it work instead of finding their own new style together.
With Max things were already so natural that even in these weeks whenever they have the slightest dialog, look exchange, whatever, it just works.
I think Conan, Jeff Ross and Mike Sweeney are too smart to insist in an idea that could hinder the show. If that's the case I hope Andy's ego can take the step back on being 'just' the announcer.
Let's see how things evolve. Maybe in 6 months this won't be an issue at all.