recently joined a BIG 4 as MGR, now deputised on client site.One of client technical staff is a part of my project team, he doesn't respond to my e-mails and when I go to his desk to talk he doesn't give appropriate attention. he is not a dedicated resource to me and works in multiple projects. I am new at Client site and also new at BIG 4 ( though worked for other BIG 4 earlier as well) hence, do not want to escalate this matter with his line management as I myself is settling down at client site.I am an experienced manager and this sort of behaviour burns me in and out to the extent that I sometime want to slap him....at the moment I am pretending I have thick skin and doing whatever works for him to deliver however, is this how these sort of bloody people needs to be managed?I am finding myself in a difficult situation considering I am new at BIG4 and New at client!!

Delegate the responsibility to keep this idiot informed.Do you have an analyst / consultant who you could tell the person as you are really busy / knowledgeable ....... I have allocated you some extra help To the consultant coach them to keep notes on their efforts to keep this person Informed etcThis way if it goes tits up you have back up, evidence and demonstrate you were bending over backwards to accomate them and getting yourself further away from them in the process