Don't Move. Even though Bank Al-Habib is a not a good bank to be in (in terms of career progression, no offense), ZTBL is even worst. I can guarantee you that after a stint in ZTBL, you won't be able to make it back into any commercial bank. Offcourse all this applies if you are in Corporate/trade/treasury etc, not in Sales. If you are in Sales function, you can move to ZTBL and then further down the road join any commercial bank