What position did Tom Seaver primarily play?

What uniform number did Mike Schmidt wear with the Phillies? What position did Steve Carlton primarily play? Steve Carlton is best known for playing with which MLB team? What uniform number did Steve Carlton wear with the Phillies? Tom Seaver is best known for playing with which MLB team? What uniform number did Tom Seaver wear with the Mets? What position did Mike Piazza primarily play? Mike Piazza is best known for playing with which MLB team?