I would pass on Setoguchi. Hate that guy, probably the biggest diver I've ever seen.
Penner I also don't see working out too well on the wings. Big, slow, lazy.... We have enough Franzens.
Not to shoot down your suggestions on these players lol, I would like to see some fresh blood on the team especially via tryout.
Penner is such a weird one. He was hot and cold in LA, but then seemed rejuvenated with the Ducks and was playing on the first line. So naturally they trade him to Washington for a 4th round pick?
With the Ducks he had 32 points in 49 games and was a +22. I'm a little leery of him though too because of his hot and cold nature. I'd be afraid for whatever reason he'd be a bust in Detroit. When motivated he's still a good player though.
From what I heard the Ducks knew he was only scoring because of his linemates, knew they wouldn't re-sign him, so they traded him when they thought they could get decent value for him.