Let the chips fall where they may this year. We aren't contending for a Superbowl just yet. I think we really start to make a move next year so I don't think they should worry about a slot WR. Just use the next man up mentality and see who becomes available as a FA.
1) I'm becoming increasingly pessimistic about a full season.
2) that said, 2nd level WRS will likely be playing against 2nd level DBs. I see no need for a trade