Hard to say since we don't really know what Jace's base line is. He's played well the first month of the season but as we know defenisve stats aren't the most reliable in short sample sizes like this especially without any prior years to base them off of. A quick guess though would be the Royals of last year. Average offense and plus plus defense. Which I know is the exact team that you would want.
Depends on how the team arrived at average offense.