Must include a good hook, client's authority and credibility must be solidly established, the pain points should be well articulated, the solution should be well structured so it removes any speculation, a minimum of 3 case studies must be inserted, the offer of the clarity calll should be positioned as exclusive and limited capacity (clearly stating who it is for, who it isn't for, what happens during the call and how valuable it is), objection handling must be clearly articulated, amongst others.