The Dolphins were trying to get Tannehill healthy for this year without surgery, perhaps because they were worried about his return to play timeline, and this is where they ended up. Clearly, the knee is not 100%, and it's possible Tannehill doesn't trust the knee. The good news here is that the dropoff to Matt Moore is one of the smallest between a starter and a backup in the league, and the passing game shouldn't be affected as greatly as it might be for any other team. The team could also sign Jay Cutler, who played very well with head coach Adam Gase when they were together in Chicago. It feels like this is building to bad news for Tannehill, but it might not be as bad for the Dolphins offense as a whole.