How did jefferson davis's failure as a leader illustrate a key weakness of the confederacy? he failed to secure enough funds for the war, which illustrates the confederacy's bureaucratic corruption. he failed to secure enough trained generals for the war, which illustrates the confederacy's lack of manpower. he failed to secure foreign support, which illustrates that the confederacy needed foreign aid to match union resources. he failed to secure popular support in the south, which illustrates the divided nature of the south's population on the war.