He should punt and just name Bernie Sanders as VP. That way, even if he drops out or resigns later, Bernie wins. That way, when they lose, the Democratic party can wash its hands of the far left and restart.
RE: He should punt and just name Bernie Sanders as VP.
The only problem with that is Biden already said his VP will meet two conditions:
1. The VP will be female
2. The VP will be black.
Unless he wants to renege on his promise and openly acknowledge that no one in the Democrat party satifactorily meets the VP qualifications, then he has already LIMITED his picks and Bernie is out.