For each channel (ex: website, social…) define specific deliverables that will help you achieve a specific result. This could be adding functionality to your website or increasing CTR on your ads.
Write out why each goal is important. By noting the desired effect you will help create buy in with other departments so you can better align with cross functional teams and focus on the target.
Create a bullet list of specific actions that have to be taken in order to achieve your goal. These are the building blocks for how you will structure your teams activities and assign tasks to your team.
When investing time, money and resources into these strategies you will want to know how it impacted your organization. Define the specific metrics that you want to track to see what impact was made.
Use a simple tool like PowerPoint to build out your strategy and present to your company stakeholders.