Another serious injury or finding an elite prospect should be the only things that put Tannehill's status in question.
I would also like him to be consistent. I like what I've seen from him in the last 3 weeks and I was also impressed in the second half of 2016, but I need to see it consistently for a longer period before I'm completely sold. Also, the issues we've been having on 3rd down have got to get fixed sooner or later if we are to be successful with him. I'm not saying It's entirely his fault or that he's the main reason we've been having those problems, but at some point he should get his fair share of the blame if it keeps happening. Look at guys like Luck or even Allen moving around and extending plays when protection breaks down. I'm not saying he should be able to replicate that because it's clearly not his game, but at least do something that's better than what we are currently seeing. He's plenty athletic so that shouldn't be a problem. If he can stay healthy, be consistent and find a way to improve his play on 3rd down, especially when it comes to pocket awareness, than I have no problem keeping him for as long as we can. But I have to see it first, and please don't confuse me for some blind Tanne hater, because I'm not.