1) False- Landry Jones looked worse than the almost-rookie that got benched, that's why he got cut, and literally zero NFL teams were interested in picking him up. His best chance is to go the way of Tommy Maddox and get his shot after the XFL.
Landry was NOT a top tier backup. Top tier backup is someone like Tedy Bridgewater or Ryan Fitzpatrick. Landry Jones, I don't understand what people thought was so great about him, I mean no teams were interested in him at all.
2) If Ben cannot come back, True. If Ben comes back, False. This really hinges on Ben's return. If Ben returns, they will try to develop one of the younger guys. I think it's premature to give up on Mason or Duck potentially being a bridge. However, if Ben is not coming back, with this team's defense, they could be a contender with a mid-level journeyman. Had we also gotten a Ryan Fitzpatrick type QB, I'm sure they'd be in a better spot right now. Like Berman says "You're always in it with Fitzy", and well, you're always in it with our defense. With that combo this could be a contender?

He could be a possible trade target, especially if the Dolphins are gonna draft a QB with one of their 20 or so first round picks next year.