Tannehill is not in the same class as the quarterbacks above, except Smith. But his ability to avoid mistakes is laudable. He's never come close to a collapse like Colin Kaepernick or RGIII, with 51 touchdowns and 24 interceptions over the last two seasons. While Tannehill's career has been frustrating, he's been a lot better than, say, Sam Bradford.
Tannehill has started every game in his career and his stats are league average or better the last two years. He has shown anticipation throwing the ball before his receivers break on routes, something Jay Cutler still never shows. After a disastrous September last season, Tannehill was mostly solid down the stretch. He shows veteran ability in going through his reads. Maybe that doesn't get Dolphins fans out of bed excited in the morning, but there remains real upside here.
http://www.nfl.com/news/story/0ap3000000671183/article/the-case-for-ryan-tannehill