First basemen used to be the best in the league. What happened, and where does the position go from here?
First base. It’s the position you play if you’re not the fleetest of foot (formerly Prince Fielder). It’s the position you play later on your career as age robs you of your previous defensive ability (Ryan Zimmerman). It’s the position you play if you belong at DH but play in the National League (see David Ortiz during interleague play). Of course these are all just stereotypes that don’t apply to every first baseman, and it’s not as easy a position to play, even if Brad Pitt playing Billy Beane disagrees.