A go-to-market strategy is primarily focused on bringing a product to market fast. Therefore, it is indeed a sub-set of a marketing strategy. However, a marketing strategy has a broader scope. An effective marketing strategy has to comprise also a go-to-marketing strategy. And vice versa, a sustainable go-to-market strategy has to be framed within a broader marketing strategy.
More Strategy Tools: Porter’s Five Forces, PESTEL Analysis, SWOT, Porter’s Diamond Model, Ansoff, Technology Adoption Curve, TOWS, SOAR, Balanced Scorecard, OKR, Agile Methodology, Value Proposition, VTDF Framework.