Nathan Bassett would be my favourite, doing a great job with Norwood, isnt a Craig Assistant so should bring more fresh ideas, but is also a ex Crow Champion, Rehn would be another good one also if he wants a go at it, as from memory he did a decent job with West and had a stint in Brisbane under Matthews. Both these guys have actually been a head coach, which is something many AFL assistants never have.
No disrespect to people like Bickley but i think they need an outsider not someone who has been under Craig the last few years and may be wanting to keep it similar, if they do go with Bickley i hope he changes it up a fair bit, game plan needs changing. I guess the next few weeks will tell if Bicks can make the neccesary adjustments to the game plan and freshen it up a bit, if not then get an outsider.