Glenn's response is absolutely correct under NEC4 as the delegation of duties by the Project Manager does not prevent the Project Manager from also doing them.
Under NEC3, this was not necessarily the case - it would depend what was said in the notification of the delegation and in your case how precisely the delegation was worded. If it was "This delegation does not include matters which have an effect on the Prices" that is pretty wooly and subjective, so I would follow Glenn's advice.
Under NEC3, this was not necessarily the case - it would depend what was said in the notification of the delegation and in your case how precisely the delegation was worded. If it was "This delegation does not include matters which have an effect on the Prices" that is pretty wooly and subjective, so I would follow Glenn's advice.