Sorry, but Debrusk's numbers have fallen over the last two years and that is a little much for. A player trending in the wrong direction and coming up on a new contract.

Detroit declines, player not useful.

Not on a team like Detroit that's stacked with wingers but definitely on another team.

Though DeBrusk is an upgrade over Fabbri, Namestnikov, and even Neilsen if he returns to form.

Namestnikov maybe, but Fabbri put up more points in less games on a much worse team. It's not a huge gap, but i think you're underselling Fabbri a bit here.
Definitely better than Nielsen though, poor guy's game fell off a cliff years ago and is cratering into the ocean floor.