One has to wonder,
can even Martha Jones save Torchwood from the mass suckage of last series? Only time will tell!
If anything, I'd just want her to put a massive smackdown on the team. And go, "You declined an invitation to travel with the Doctor for this?" to Jack. I mean, I know she left for the unrequited love thing, but there's leaving for that and then there's leaving for Torchwood.
Oh Jack. Oh Martha.
Speaking of, when was the last time that all of the Doctor's companions (well, when he was traveling with more than one) left in one fell swoop? Last I recall was Jamie and Zoe, but that was nowhere near by their own doing, and the last time the Doctor really had an entourage was with the Fifth, and all their leavings were staggered.