Some collective nouns may accept either a singular verb or a plural verblage, depending on their use in the sentence. Collective names can be difficult, as it is up to the author of the sentence to determine whether the name acts as an entity or whether the whole indicates more individuality. In your first example, “India has a team of players who are engaged”,” the team of players with individuality acts within the unit. In your sentence “A group of doctors goes to Haiti,” the word group is a collective name that serves as a unit. Therefore, it is treated as a singular noun and uses singular verbling. I ask, because although “men” is plural, “one of men” displays a singular object that would require the use of a singular verb. A pluralistic collective name accepts a plural verblage: families appreciate this restaurant. It is a matter of judgment. Our rule 7 of the subject-verb agreement says, “Use a singular verb with distances, periods, sums of money, etc.” This rule corresponds to the discussion in the first sentence of this article about “Nouns. Act as a unit. The words collection and silver are the two singularubstantives and are followed by singular verbs.
Would the word man for concordance of subjects have a singular or plural verb? Example: (Tut/ Tut) the three men have reserves….