It's Haslam. Andrew Berry is entirely analytics driven. His goal is to gather picks, not part with them. Even when he trades a pick away, it's either later round, or a pick swap with a player included too. Like a 3rd for a player and a 4th. Analytics say to gather as many picks as possible. The more swings, the higher chance of a hit. I can't see any situation that Berry traded all this picks for Watson without Haslam being involved and forcing the issue.
Watson's ability is still there. He just plays scared all the time now. 1 read and run, or 1 read and take a sack. The only time the team moved the ball yesterday was when he was willing to throw the ball down the field a little.
The Browns' line is in shambles, but they aren't the main problem. For most of the 2nd half yesterday, because of injuries, the OLine was:
LG - C - C - RG - RT and even then, they were rotating at RT, and their RG is a rookie, though he actually played very well.