An often fatal mistake made over and over again by countless sports teams that prematurely pull back against a perceived weaker competitor only to get beaten by them in the winner take all playoffs.
As of now, there is no real opposition to her thighness on the Dem side. When someone shows up, I would not waste time fighting her because if one shows up with party backing, she is a goner. The sports analogy is not germane to a political contest IMO.