Miguel Cabrera wants to move back to first base. According to Buster Olney of ESPN, Cabrera informed the Detroit Tigers that he wants to move to first. Cabrera gets his chance due to the trade of Prince Fielder, the original cause of Cabrera moving to third base. This move makes sense on many levels; it allows Cabrera to take less stress on his body (letting him play longer), opens up the door for 2010 first round pick Nick Castellanos to play third, and makes the Tigers more defensive sound.
Cabrera, 31 in April, has a career .992 fielding percentage at first base. That is much better than the .956 mark he has playing third over his career. If you put that in perspective to MLB average fielding percentage, Miguel Cabrera is a mediocre fielder. At first, the MLB average fielding percentage is .994, compared to Cabrera's .992. At third, however, the MLB average is .955, again showing that Miguel Cabrera is an average fielder at third. That tells us that this move is not necessarily helping the Tigers defense by itself, but it will likely be able to keep Cabrera healthy and make other moves to make the Tigers defense better.