They had those on July 1st though. The veteran rule is a pain. They can't really make anymore high profile signings as they're at the veteran limit right now.
Botterill has spoken repeatedly about making Rochester a competitive team again. Fedun is a part of that. If he's seeing significant time in Buffalo, there will be several injuries leading to it.
Fedun is definitely starting with the Amerks. 8th or 9th D on the depth chart likely. Falk ahead of him and I expect the Sabres to bring in at least 1 more NHL defenseman.
As a long time Amerks STH this is by far the most optimistic I've been in a long time. Maybe since 2009. I love what Botterill is saying and he has a track record of actually backing it up.