Is this the introduction to a longer story? I'm not sure why the story ended where it did. It felt half-finished. Was it a time crunch thing?
As far as the actual work goes I enjoyed it overall. It was a nice slow burn with some good, subtle characterization throughout. You've got a good voice, and I'd encourage you to trust your prose and let your characters speak for themselves. You don't need, for example, to tell me Roark is doing something "calmly" because you've already got me picturing that with the businesslike way he's described as acting to that point.
While I did like the piece, and I wouldn't mind knowing where you were going with it, I'm not sure how it fits into the whole "strength versus intelligence" idea. I suppose the investigation and tracking could be construed as intelligence, but I'm not sure what the "strength" would be that runs up against that, or contrasts it in any way, and I'd love to know what you were going for there.