I don't think Tim Couch was as bad as what some people remember him to be. Those first few years for the expansion Browns he got absolutely pummeled behind weak offensive lines much like David Carr did for the expansion Texans, and he was often plagued by injuries. Both of those guys may have had very different career quality and longevity if they weren't injected into poor situations.
The Bengals should draft Burrow, but they need to have a couple significant upgrades to the offensive line for him to have any early success. Short of adding a couple guys on top of Jonah Williams getting healthy, Burrow needs to sit for most of the year while Dalton or some other tackling dummy gets pummeled.