I would emphasize Jesus more, probably.
But I'm not Rick's Boss. God is. And Rick is greatly successful at the path GOD HAS LAID BEFORE HIM.
Rick believes the basics. Rick teaches the basics. Rick leads 10's of thousands into lasting Salvation relationships with Jesus. I'm not about to throw rocks at that.
I can't imagine God saying anything else but WELL DONE, MY GOOD AND FAITHFUL SERVANT to Rick.
I'm not into hero-worship or idolatry, but if this Rick Warren guy is teaching that the Gospel=the Cross then God-speed; if not,he needs to be hammered!