Rudan doesn't strike me as having a hard man style, he seems quite compassionate.
You can be both.
Perhaps the term no-nonsense/no excuses is better. He's had a few sideline bustups with other coaches. Hasn't blamed the refs, travel etc much that I remember after a loss - which can smack of a weak attitude if it happens all the time.
Not afraid to say that the club had a reputation for being 'soft mentally' across the ditch.
Not afraid to call out the Welnix owners when he wants more.
Not afraid to quickly cut a player when they are not doing enough (Nicholls), or not signing some players without them committing to a trial (Payne?, Howieson?).
His way, and if you are not in see you later.