Kremer has been a whopping disappointment this year. I think the only thing that's saving him from being demoted is that Irvin hasn't exactly been spectacular in his AAA stint so far. That, and Means isn't ready to come back yet. Hypothetically, if Means were ready to come back next week, I think this is a different story.
I wouldn't mind seeing what Rom can do instead, he certainly couldn't be much worse than what Kremer is bringing to the table these days. If Kremer gets shelled tonight and they need to send him down and Rom isn't the guy, I wouldn't mind seeing Watkins again. He's another option in the "can't get much worse" club.