I would add Galchenyuk, but I wouldn't do it at the cost of Carter. There are a few players on your team I would much sooner let go, before Carter. Jokinen is also probably worth a pick up as well.

I'd be looking in to dropping Alfredsson and Havlat, maybe Cammalleri, as you have a lot of players on the Flames, but you appear to be a Flames fan, so there isn't a dieing need for cutting one.