the weak scale is to start from tachyonic stop boundary condition [@Dermisek:2006ey] which is explicitly realised in gauge messenger model [@Dermisek:2006qj]. However, this option is not available in minimal gauge mediation. The other possibility is to couple messengers directly to the visible sector fields such that large negative $A$ term can be generated at the messenger scale. If $A$ term is positive, the gluino contribution from the running cancels the $A$ term at the messenger scale. Matter-messenger mixing [@Shadmi:2011hs; @Albaid:2012qk; @Abdullah:2012tq; @Evans:2012hg; @Evans:2011bea] also has been considered recently. Messenger-matter-matter Yukawa coupling would generate the needed $A_t$ term at the messenger scale. However, the full Yukawa couplings are written as $3\times 3$ matrices and why all other dangerous Yukawa couplings between matters and messengers are absent except $33$ component remains to be a puzzle. One way out is to consider Higgs-messenger mass mixing [@Chacko:2001km] and to generate all the wanted Yukawa couplings between matter and messengers from ordinary Yukawa couplings of matter with Higgs. There would be a direct modification of squark spectrum if squark couples directly to the messenger.

![ Phase diagrams indicating stop tachyonic and no EWSB region for $\tan \beta = 10$, $\tan \beta = 30$, respectively. $B_N$ 