Do you take the time to develop the framework for your ERC Starting, Consolidator or Advanced proposal prior to writing your proposal?
Too often we see a written draft where the aim, objectives, state of the art, motivation and the ground-breaking/innovative aspects underpinning the proposal have not been well defined prior to writing the proposal.
Once a proposal is fully or even half written, it is extremely difficult to back-track and fix these underlying issues in order to strengthen the proposal.
So with your next ERC proposal, do start well ahead of time and fully develop these critcial foundations that underpin your proposal before you start writing.
Once these have been developed and you have feedback from trusted and experienced colleagues, you will find that the writing process is much easier and that you end up with a much stronger ERC proposal.