Didn't know much about him so I searched.
Hallam leads Växjö to a third title
"So where is Hallam’s greatness? There are several qualities that make him an excellent coach. He is a brilliant communicator, and he has shown that he can work equally efficiently with veterans as well as with young players. Just look at what Hallam did with Elias Pettersson before the player left for Vancouver.
There are observers who say that his teams play an overly academic or calculating style of hockey and, although there may be some truth to it, no one with the Lakers seems to care. The three championship titles in six years are solid proof of that. They are a team that relies on puck possession, opportunistic scoring and a suffocating defence."