No doubt Greg Bittar has done a great job for SHD, despite the poor form sp.
I have every confidence in SHD's operational capability.
Now that TTY is falling under Noble Group.
I think the best candidate to replace Greg is Andy Haslam (esp. if Noble Group isn't going to offer him the MD of the Australian operations role in iron ore).
SHD should have some discussions with Mr Haslam.