I recommend that the marketing strategy should be around creating as much awareness as possible about Polkadot towards crypto end users so that this will signal to VCs and investors that there is an interest in Polkadot and they will start investing in projects building on Polkadot because they want to ride the Polkadot wave
If you want to understand more about the strategy please listen to the following audio:
Threshold
In my opinion, focusing on these kinds of activities will improve the success of Polkadot. We need to put more effort into venture capital and attract more companies to Polkadot.