  It has been pointed out recently by Chanowitz that the $Z \to b\bar{b}$ decay
asymmetry poses a problem for the standard model whether it is genuine or not
[Chanowitz:2001bv]. If this conflict is interpreted as new physics in the
b-quark couplings, it suggests a rather large right handed coupling of the
b-quark to the Z-boson. We show that it is possible to accommodate this result
in left-right models that single out the third generation.
