Thing about Cousins is he does everything well and nothing exceptionally. He even interviewed well but not exceptionally.
He's the sort of draft choice that sends fans on here nuts when we make them. He's Koa Misi, AJ Edds, John Jerry... good chance of sticking on the team and making a contribution but the upside is more or less limited to just about a starter. He might surprise us all, but with what exactly? What tools are there that, with some honing by a good QB coach, will bring him to the next level?
I only see abilities that will have to improve just for him to make it as a starter. I don't see anything I'd be building a system around. I like him as a person and wish him well, but I don't think I'll be crying if he signs for someone else. I'm even prepared to consider he might have a Dalton-like rookie or second season, but ultimately I don't think he wows with any aspect of his game and that will get found out before long.