I've come across alot of IT Manager\Network Manager in my years in IT and I've always been shocked that they lack knowledge in certain areas of IT, imo if you are a IT Manager or Network Manager you should be aware of all technoglogy, worked in all areas of IT (Web Design, Networking, Support etc).
I remember a few years back my old Network Manager asked me to come to his house and install a DVD-RW drive .................i'll say no more.