Kim is a late inning reliever, period. Perfect for a once through the lineup run, especially late in the game as he can really screw up a hitter that has been looking at a more mainstream delivery for seven or eight innings.
The fact that he wants to be a starter means nothing. I want to trade paychecks with Bill Gates. Well, you don't always get everything you want, and that's life. And the fact is I'm never going to get a Bill Gates paycheck, and Kim is never going to be a quality starter.
Roto owners can therefore do the one thing the Red Sox may not be able to do, which is dump the pain in the neck.