I feel like it is time for me to propose my DNC rules change again.
When picking a VP, whoever comes in SECOND at the Democratic National convention should have the right of first refusal for the VP spot. Since 1984 this would have given us tickets like:
Mondale/Hart
Dukakis/Jackson
B Clinton/Brown
Gore/Bradley
Kerry/Dean
Obama/H Clinton
H Clinton/Sanders
Biden/Sanders
Not only do I see some winning tickets in that list (like the unbeatable Dukakis/Jackson ticket), but I see a party that acknowledges the existence and legitimacy of its liberal/progressive members.