left field vs baseball team

left field and baseball team both are nouns.

Word	Noun	Adjective	Verb	Adverb
left field	Yes	No	No	No
baseball team	Yes	No	No	No

left field (noun)	baseball team (noun)
the fielding position of the player on a baseball team who is expected to field balls in the left third of the outfield (looking from home plate)	a team that plays baseball
the piece of ground in the outfield on the catcher's left