The incomplete fusion dynamics of 6 Li + 209 Bi collisions at energies above the Coulomb barrier is investigated. The classical dynamical model implemented in the platypus code is used to understand and quantify the impact of both 6 Li resonance states and transfer-triggered breakup modes (involving short-lived projectile-like nuclei such as 8 Be and 5 Li) on the formation of incomplete fusion products. Model calculations explain the experimental incomplete-fusion excitation function fairly well, indicating that (i) delayed direct breakup of 6 Li reduces the incomplete fusion cross-sections, and (ii) the neutron-stripping channel practically determines those cross-sections.