Iowa is gonna have competition aplenty this season. Shaw, Rossi, Firstov, Hentges, Beckman, Swaney, Chaffee. I'm sure I'm missing someone. And that's not even counting guys like Cramarossa, Baddock, Petan who aren't NHL hopefuls. Competition is good, but if guys who should be getting playing time aren't getting playing time because of competition, it's not as good.
I'm sure Walker is a great person and having another dart is usually a good thing, but I don't see this specific dart making any difference in the long run.
I'm still waiting to see what Guerin plans to do with the NHL roster. Team needs two more forwards. The Dumba situation is still way up in the air too.
EDIT: Might not actually be missing anyone important from that list, Khovanov is gone, Khusnutdinov and Guskov are in Russia, Novak is recovering, Nesterenko is back at BC, Ohgren and Yurov are still in Europe.