You know what would be a dramatic proposal by a Democrat?
Someone to cut through all the noise in the debate and say they should agree to get behind whoever is leading after Super Tuesday, particularly if they have a lead of X delegates (say 40). The set up should be that America is facing an existential crisis with a despot who is further emboldened everyday. It serves the party to align quickly behind a nominee, avoid a contentious convention, so everyone can position themselves to help the party win all 3 races in the fall.