If your objective is growth, 60%+ of your time should be spent on growth.
This means improving SEO, high-profile guest blog posts, traditional PR, direct invitations, partnerships, paid social, getting the community positioned more prominently and featured on the homepage.
If your objective is retention, 60%+ of your time should be spent on retention.
This means building validated audience segments, satisfying each segment, developing a sense of community, converting newcomers into regulars, giving each member a scalable sense of ownership.
If your objective is internal support, 60% of your time should be spent winning over colleagues, building up stories, having coffees/meetings with others etc..
Make sure the bulk of your time is genuinely spent pursuing the main objective. I’m often amazed how few people are even spending a handful of hours a week pursuing their key aims.