Certainly there's no hint of shame or public disgrace in the Bulletins, nor was there any demonstrable immediate repercussions during the pursuit of the Prussian Army after Jena. Perhaps historians have overstated Napoleon's feelings at the time, in light of much later betrayels, as if to claim that Napoleon knew as early as 1806 that Bernadotte was no good.
Certainly there is a great deal of damnation from historians for Bernadotte by the turn of the century.
As you note, contemporary accounts (like "Precis...1807") speak of him in glowing terms.
I'm unfamiliar with Lechartier's work. Though I do have a copy of Grenier's (sp?) work on French military movements during the Polish Campaign. A detailed, day by day account of who was where when (nothing on opponents and concentrating on cavalry).
Thanks again for all your help.