A lot of people are undervaluing Brown this year. He is no longer with the Steelers, but Brown is still one of the best receivers in the game. He is going to be a threat to lead the league in targets this year. Even when he was with the Steelers, defenses were focusing on stopping him, so the lack of weapons around him won't affect Brown's production to any extent. There are only three reasons to expect Brown's production to go down. The first is that Derek Carr is a downgrade at quarterback from Ben Rosthlestburger, but he isn't a bum by any means. We have seen receivers be successful with bad quarterbacks in the past (DeAndre Hopkins, Odell Beckham Jr., Brandon Marshall, Mike Evans, etc.) so this won't be a big deal. Another reason to expect some regression is that the Raiders offensive line is bad so Brown won't have as much time to get open. This is a concern, but we have also seen receivers be successful with bad offensive lines (DeAndre Hopkins, Odell Beckham Jr., Julio Jones, Mike Evans, etc.) so this is also a minor issue. Finally, the largest concern is that since the Raiders have a bad offense Brown will get fewer scoring opportunities. This will definitely be true, but Brown is also going to be the best (and one of the only) red-zone options for the Raiders, so when they are going to score they will be passing the ball to Brown. In Pittsburgh, the Steelers had Juju and James Conner along with Vance McDonald, James Washington, and more. Brown's touchdown total from last year will surely regress, but not by as much as some people expect it to. There is actually a reason to expect Brown's production to possibly go up: the Raiders will be losing a ton of games, so they will be passing the ball a ton and Brown will have the chance to get a ton of garbage time points that he was never able to get with the Steelers who weren't losing games very often. Overall, Brown will regress and he is a little bit risky because of his new team, but he still has the chance to be the best receiver in fantasy because he is still one of the best receivers in the game.