Yep.. two people. One holding him down and petting him, the other to do the shaving. I'd say get as much done as you can with him in his normal standing position while one person is petting him trying to calm him down. When it comes time to do the belly and paws/legs, you might have to hold him down with some force. I hate that part because they will cry and cry but it's for his own good.
Oh and watch for hot blades. We had to cool it down with water or some spray stuff multiple times. We have some fancy shaver made for pets that we bought online because the walmart ones weren't working.