Finger pointing
"Many helpdesks will not transfer a ticket between resolver teams due to past football tossing between teams. Bad management forbids it, good management regulates and tracks it for abuse, then beans the offender(s)."
I've experienced that as a user in 2 main forms:
1) products from different suppliers, where each supplier blames the other one
2) where the hardware folks blame software, and the software folks blame hardware.
Both can be difficult to resolve and involve a careful mix of diplomacy and your own diagnostic skills.
Biting the hand that feeds IT
