"I quite frankly think he's going to be a pretty good starter down the road," Yost said.
Crow developed into closer Joakim Soria's primary setup man after the Royals decided to try the Minor League starter as a Major League reliever this year.
"We can always find somebody, for the most part, to get three outs or six outs," Yost said. "Our problems lie in guys getting 18 or 20 or 21 outs. And that's what we're looking for, we're looking for guys that can come in and solidify our starting rotation . . . and he's a kid that can do that."
But not this season.
"We don't want to throw that at him now," Yost said. "If we do this, it'll probably be next spring."