This doesn't pass the smell test. Not only does it not make sense in general, but it couldn't have happened. They could not have traded for Perkins before July 1st, and on July 1st, the lockout was on.
I think it is very believable that Danny has interest in Westbrook, and maybe this deal was brainstormed or thrown out in a conversation as a "what if" once the lockout was over...but this particular deal couldn't have actually been offered in a legitimate sense.