Pass Rush
This could very well change in the coming season. Geno Atkins could return to form, Michael Johnson could be the Michael Johnson from 2013, Margus Hunt could show something, and the Bengals pass rush could improve on its' disastrous 2014 campaign. But right now, we're calling it a weakness.
Passing Offense
Dwayne Bowe didn't catch a single touchdown in Kansas City, and he isn't going to revitalize his career in Cleveland. Brian Hartline is a solid receiver, but he's not going to scare any defenses, especially with his quarterback situation.