Also not a great time to make a trade. Depending on the kind of trade you're looking to make I guess. The Blues had to take back a player in their deal yesterday. Going into a season, most teams are healthy. Any that aren't, likely have to, or already have, taken the eventual return of the injured player into account. Which is a must with the cap. That's the main reason trades aren't nearly as fun or as plentiful as they used to be.
If there was a trade to make, it would've already been done. Adding Arvidsson, Danault, and re-signing AA and Lizotte, none or any single one of those things needed to happen if all these young guys are actually going to make the team. All you likely did, is put yourself in a bad position for a deal. You're the one up against the deadline of the end of camp, and having to get under the roster limit, without potentially losing someone for nothing. Can't just "hope" injuries create enough holes on other teams to make them desperate.