I have two questions about the orbitals that we get after the CASSCF calculations.
First, what are the CASSCF orbitals that we get from these calculations? I mean after optimization, in the CASSCF wavefunction we have various configurations (CSFs) with different weights and in each of these CSFs we have MO orbitals with different MO coefficients. So my question is why CASSCF software packages (in particular Gaussian) display MO orbitals after the CASSCF calculations? These orbitals belong to which CSFs? The CSF with the highest weight/coefficient?
Second, if the orbitals after the CASSCF calculations are valid, should they approximately the same as the initial orbitals (guess orbitals)? If they are not, it means that the initial guess should be changed?