Leadership is very important when it comes to content marketing.
Having leadership support is critical for your content marketing operation. Having the people running your content marketing programs empowered to make your decisions quickly and time is critical. That is why the leadership backing you up is critical. Take the time to do a Competitive Analysis, show leadership what the competition is doing to gain support.
Having examples of what your competition is doing is a great way to get everyone on board with you. Go find those good examples and then bring them back to brainstorm with them. Once the leadership approves the more help and resources they will provide for your content marketing efforts.