and that makes completly no sense at all, since Tsunde arrived to the leaf village the day previous to Sasuke's escape...
but more than that, the genin team was deployed the moment they found out about Sasuke, so even if Tsunde sent someone to the sand village at that exact time, it wouldn't make any sense that her carrier managed to get to the sand village and then call Gaara and co. in the few hours which passed since then...