Wish Dumba was more consistent, or rather, didn't have so many yikes plays. If he is going to do that, then you want him being dangerous offensively. He's also got to stop going overboard with the hits. The league penalizes you on them anyways a lot of the time, and all it's doing is getting him hurt.
Don't want to discount the many times that he played well. The guy has the skating, strength and athleticism that you want in a NHL player, and he and Brodin are playing together way better now. I would keep him around if he would sign a long term deal at 5M. I am afraid that he'll want at least 6M, if not more. I just don't see it, especially with him starting to get injured.
If we didn't have the Parise/Suter cap hits i would be more relaxed about his contract. Would probably be fine with him getting 6M x 7, similar to his buddy Brodin, though I don't think he is as good.