The term "team player" should not be hyphenated when used as a noun, as in "She is a great team player." However, if it is used as a compound adjective before a noun, it can be hyphenated, as in "He is a team-player advocate." The hyphenation helps clarify the relationship between the words in the latter case.
Probably not.
Yes it should be hyphenated.
Yes, it should be hyphenated.
Yes it should be hyphenated.
yes check-up should be hyphenated
The term "buy-in" is typically hyphenated when used as a noun to refer to an agreement or acceptance of a proposal. For example, you might say, "We need to get buy-in from the team." However, when used as a verb, it is not hyphenated, as in "We need to buy in to the new strategy."
It should be hyphenated.
Yes it should be hyphenated.
"Field" is not hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
No it shouldn't be hyphenated.