I would never, ever, employ someone to buy animals for me. What a can of worms that would be. They don't have my eye, and they can only understand what I want and what my criteria are if they really listen... which is a recipe for disaster.
I can see someone buying for a feedlot, because the goal is a uniform lot of a specific type and the feedlot can adjust to what they get in many cases.
But nope, not for animals to go in my pastures. I'd be blaming them for their poor choices or lack of understanding in ninety percent of cases. And then I'd be kicking my own butt for deciding to try it.