MLB teams are often hesitant to give up on struggling players. But even at this juncture of the 2013 season, Jonathan Sanchez, Erik Bedard and others have already distinguished themselves as unsalvageable liabilities.
It took more than just month-long slumps to make this list. Shaky rookies like Aaron Hicks and Wily Peralta, for example, fill thin positions on their respective clubs. Besides, it's unfair to draw conclusions about high-ceiling guys so early in the developmental process.
Rather, the following slides include contract-year underachievers, as well as controllable role players who have not progressed after several years in the majors.
It's not too early to tweak rosters when superior replacements/better fits emerge.