http://financial-dictionary.thefreedictionary.com/Cost+Synergy
"Cost synergy may also refer to the cost reduction a merger brings about by eliminating or streamlining redundant processes"
http://financial-dictionary.thefreedictionary.com/Cost+Synergy
"Cost synergy may also refer to the cost reduction a merger brings about by eliminating or streamlining redundant processes"
HR is redundant with respect to a box of rocks