Dan Plesac could see a lefty situational save or two, but won't be a factor. If Toronto can resist the thought of putting Escobar back in the rotation where he has been much less successful, then he could save 5-10 games with potential for more if Koch faces injury. Still, he has unhittable written all over him. There will be a day when Kim is just too good for a setup role. That day could be a year or two off, though.
Rocker is still a trade candidate, remains combustible and can have fits of wildness.
Ligtenberg and Remlinger remain two of the better setup men in the game, but I see Rocker snaring 40 saves this year. Yet, there is little competition in the Cubs' bullpen and this job appears to be his. Farnsworth has the arm, but walks six batters per nine innings. Plus, he's thrown an enormous amount the last two years under the torture, er, tenure of Jack McKeon. If there's a closer with risk attached to his health and effectiveness, this is the guy.