Probably, but my understanding is that Safeties in Staley's scheme are interchangeable. They will both alternate rotating down in run defense pre-snap and they will both alternate covering over the top. Which is why Reid is a perfect fit. He's great in coverage and against the run. I think both Safety spots are very important for Staley's scheme because they are counted on both to provide coverage over the top and to add the 7th guy in the box late for run support.
Reid is a perfect fit, but I would think they still add a young Safety in the draft to compete with Tyrann.