can't separate the two, as the two build on each other.
If you want to say there's ID in the Big Bang when all physical laws were established, fine. From there, however, it was all evolution, first stellar, then planetary and finally life. There's no need and no evidence of ID. It all happened at the BB, if you're a theist.
But that alone IS intelligent design if one would want to argue.
I said I'd give it to you at the BB, but it has nothing to do with the evolution of life beyond that being the time when all physical laws were laid down. There's nothing inevitable about humans. If we were a waterworld, we could have ended up being highly intelligent dolphins.