Del Zotto isn't bad, he's just not very good. A few changes to his game and he could be a valuable piece. I think the reason it took him until August to sign isn't because he didn't have offers before - he wanted to go to the right place to rehabilitate his career.
I mean it says a lot when a team like Nashville doesn't even give you a qualifying offer as a 23 year old, and after they gave up a solid NHL defenseman to get you in the first place.
Can't say I paid attention to him that much, but he was absolutely putrid in the Devils/Rangers 2012 series, to the point that he made Salvador look like Nik Lidstrom.