But the one who "hasn't figured it out", is still producing more bWAR than the guy who is "already a force", which is my point. Yes, Rosario's improvement on offense is encouraging, but defense and baserunning count too, and Rosario is poor at both. If he can keep improving the offense into the high .800's, or even low .900's, than he can more than make up for the defense and baserunning. But as of now, he's barely doing that.