Seid is awful by these numbers. He literally makes almost everyone he plays with worse.
Before his injury, he wasn't this bad. Here is 2007-2011:
http://stats.hockeyanalysis.com/showplayer.php?pid=462&withagainst=true&season=2007-11&sit=5v5
But still, never a corsi heavyweight.
He has never been a Corsi giant, but that was always mitigated by the fact that because he was strong and smart he was able to protect the house better and force shots outside. The game just looked to fast for him this season, though. I still think he can come back and be a good middle pairing D, which is fine for 4 million. Would rather have a younger more mobile version of Seids to pair with Hamilton, though.