  We explore predictive flavor models based on subgroups of the standard-model
$SU(3)^5$ flavor symmetry. Restricting to products of $SU(3)$, we find that a
global $SU(3)^3$ flavor symmetry, broken only by two Yukawa spurions, leads to
a relation among down-type quark, up-type quark and charged-lepton Yukawa
matrices: $Y_d \propto Y_u Y_e^\dagger$. As a result, the charged-lepton mass
ratios are expressed in terms of quark mass ratios and mixing angles. Large
leptonic mixing angles appear to be natural and lead to contributions to
flavor-changing neutral currents in the charged-lepton sector, which can be
tested in future precision experiments.
