Pacific PzC Candidates?

[Florek112]

Defence based on Vistula-Narew line, great from military point of view, was impossible because of political reasons. But as an alternative version, why not?
Other option to alternate campaign is to make German forces and air support getting smaller with time - as a result of more aggressive French action, as it was stated in Bonnet-Lukasiewicz protocole (offensive with a main forces at least in 15th day of war).