Background: Guillen came over with Garcia in the Johnson deal (along with lefthander John Halama). A shortstop in the Astros system, he was immediately shifted to second base due to the presence of Alex Rodriguez. He had an impressive, if short, big league debut. Strengths: Guillen brings a shortstop's range and arm to second base, and he made the transition well. He has good hands defensively and can turn the double play. A slightly better hitter from the left side, Guillen has alley power and should eventually become a solid No. 2 hitter. Weaknesses: Guillen must become more consistent in his plate appearances and learn how to hit major league pitching. He could have benefited from a season in winter ball to get more experience at second, but he suffered a slight knee strain at the end of last season that required rest and rehab. The Future: Guillen will go north with the big team this spring and be the regular second baseman.
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