not an ad hoc assumption but can be explained in the context of non-Abelian discrete flavor symmetry, e.g., tribimaximal PMNS[@Harrison:2002er] from $S_4$. Therefore, order one neutrino Dirac Yukawa coupling can generate order one A term at the messenger scale and at the same time can be consistent with the charged lepton flavor violation constraints as long as it is proportional to the identity matrix.

$S_4$ flavor symmetry is the most natural and/or simple if $\theta_{13} =0$ as the tribimaximal mixing can be nicely realised. However, small but sizeable $\theta_{13}$ ($\sin \theta_{13}  \sim 0.15$) can be accommodated with the extra complication[@Lin:2009bw; @Ishimori:2012fg; @Altarelli:2012bn; @King:2012vj]. If the origin of $\theta_{13}$ is the modification of Majorana mass of the right-handed neutrino, there would be no off-diagonal element in the lepton doublet soft scalar masses as the neutrino Dirac Yukawa would be still proportional to the identity. In this case the model is free from the cLFV constraints. Nevertheless, the sparticle spectrum needed to explain the observed Higgs mass is heavy enough such that it is hard to explain the muon anomalous magnetic moment at the same time. If $\theta_{13}$ is due to the deviation of the neutrino Dirac Yukawa matrix from the identity, 