  Let G be a quasi-split p-adic group. Under the assumption that the local
coefficients $C_{\psi}$ defined with respect to $\psi $-generic tempered
representations of standard Levi subgroups of G are regular in the negative
Weyl chamber, we show that the standard module conjecture is true, which means
that the Langlands quotient of a standard module is generic if and only if the
standard module is irreducible.
