New Cub Glendon Rusch has been called up from AAA, and Michael Wuertz was sent down. Despite rumors that he'd replace Sergio Mitre as the temporary fifth starter, that doesn't appear to be the case (for now) -- he'll be a second lefty in the Cubs bullpen.

I liked the acquisition when the Cubs picked him up, and I think he'll make a fine go of it in the Cubs 'pen. He's been pitching lights-out in AAA (1.89 ERA) and even had a big two-homer game while in Iowa. While Rusch has spent most of career as a mediocre starter, he had a good run of it as a reliever (after the world's worst start to the year) towards the end of last season with the Brewers, posting a low 2.35 ERA out of relief for Milwaukee.

Rusch's greatest attribute as a pitcher is his control. And after last night's game, I think we all can agree that a few fewer walks in the Cubs 'pen is nothin' but a good thing.