Well, I still think this is very early. They can still turn this thing around. And even if they don't this year, they have 4 more years together.
Still, it would be rather amusing to see this thing fall apart. If LeBron can't win a title in Miami, it will completely ruin his legacy. At least with guys like Barkley and Ewing, you can say that they "never had the talent around them" to win it all. Won't be able to say that if it falls apart here.
But as I said, I wouldn't write them off yet. Lots of time.
Francis certainly isn't a good idea though. Even if he has game left, the last thing Miami needs is another player who needs to dominate the ball to be effective.