GhostofCain
Ancient Mariner
Yes, unless you're a really big name, you're so easy to replace if some detail gives rise to doubt or seems like a risk.
Roy Z was the man we have to thank for Bruce’s resurrection. I am not sure he will be that easy to replace if Bruce is so eager to bank on the Accident of Birth/The Chemical Wedding songs as he has been on the current tour.
That being said, Bruce can always play a setlist of non-Roy Z songs…