Someone speculated in an earlier thread that teams know the players they are getting and recent performance doesn’t matter that much.
Wrong.
Teams want to know how players are playing right now. No one is going to trade a first because a guy had a few good games but look at Zuccarello, who is a rental, and how well he is paying right now. That matters. That’s why buildings are filled with scouts at this time of year. In addition to the bodies you see at the rink, plenty of other teams are watching on video. Several of the more tradeable Rangers are playing their best hockey of the season. That matters.