In addition, what I really lament about this primacy of "the gospel of Christ" is they usually do not articulate the gospel's relation to God; that is, "the gospel or good news of God" must be a starting point for mission, as both Jesus and Paul begin their ministry with this "gospel of God" (Mark 1:14 or in Rom 1:1). Even before we talk about the gospel of Christ, we should talk about the good news of God, which is none other than God's good news. God is the good news. God is righteous. God's righteousness is being revealed (Rom 1:16-17; 3:21-26). God is the center of Paul's theology.
We must bring God's good news, informed and exemplified by Jesus, through our life. We need three gospels: God's gospel, Jesus's gospel, and our own individual one. Each person must be the good news to others.