You have to worry about the player, but you also have to worry about the market.
When it comes to buying and selling players in fantasy football, those are the two areas of concern. The player himself -- his statistical profile, how his team is using him, his outlook -- is obviously important. But if everyone -- the market -- views a player the exact same way?
Good luck generating a trade.
For those of you who are into the dynasty format of fantasy football, you probably remember how Kadarius Toney was viewed before and after the NFL Draft.