  We present a jet quenching model within a unified multi-stage framework and
demonstrate for the first time a simultaneous description of leading hadrons,
inclusive jets, and elliptic flow observables which spans multiple centralities
and collision energies. This highlights one of the major successes of the
JETSCAPE framework in providing a tool for setting up an effective parton
evolution that includes a high-virtuality radiation dominated energy loss phase
(MATTER), followed by a low-virtuality scattering dominated (LBT) energy loss
phase. Measurements of jet and charged-hadron $R_{AA}$ set strong constraints
on the jet quenching model. Jet-medium response is also included through a
weakly-coupled transport description.
