The closest I've seen to Russell Wilson in style of play is Marcus Mariota of Oregon (JSeahawks might be able to chip-in here). He is 6-3/6-4, and not nearly as refined as Wilson is at this point at checking reads, etc., but he was only a RFr. last year (same as Manziel). Both Mariota and Wilson show very nice touch and are highly creative and elusive WITHIN the pocket; both have nice high releases. Like Wilson, I read an article that suggested that Mariota learned the ENTIRE Oregon playbook within a week. Kearly, I know you are already familiar with him, but if you are adding Manziel, who will assuredly be a high pick despite his height, you might also dive into Mariota as well- plenty of games and highlights online. I definitely value your insight there. Thanks!