waiting game vs strategy

waiting game and strategy both are nouns.

Word	Noun	Adjective	Verb	Adverb
waiting game	Yes	No	No	No
strategy	Yes	No	No	No

As nouns, strategy is a hypernym of waiting game; that is, strategy is a word with a broader meaning than waiting game:

Other hypernyms of waiting game include scheme.

waiting game (noun)	strategy (noun)
a strategy of delay	an elaborate and systematic plan of action
	the branch of military science dealing with military command and the planning and conduct of a war