Trent, Cameron and Winslow in last 10 seasons had top 10 seasons.I think this has more to do with the fact that Cleveland hasn't really even drafted a good offensive skill position player in the last decade plus.
How many players have been able to achieve top 10 seasons on the Browns at all?
My point was that the Browns as a franchise are not keeping players from having fantasy success. Close to zero statistical info exists to back up this assertion. They just have been unable to assemble the right players and the few that have been talented have had major drug or injury issues. There is nothing to suggest that the franchise history is going to drag down Barkley unless you just believe in luck or curses or something and feel like going to Browns increases his injury risk or is going to turn him to a life of drugs. I don't.
My only concern at all with the Browns is a little more simple. Duke is a good pass catching RB and in year one or as long as they play together he might syphon off a little of Barkley's work in the passing game.