This time last week I posted the first edition of the bubble watch. Since then, though, plenty has changed. The 53 man roster is starting to take shape - though some positions are still clearly wide open.

Remember here that the idea behind this isn't to nail down and predict the depth chart at each position. Instead, it is to help put together a possible 53-man roster. It's important to note that this is not how I predict the roster will look once the preseason comes to a close.  Instead, it's simply a snapshot that examines how Miami's 53-man roster might look if the cuts were to be done at this very moment.

Plenty could change between now and September, of course. But the depth chart has gotten a little clearer this week. So let's get to it.

Last 5 On: Patrick Turner, John Nalbone, Ryan Baker, Charles Grant, Quentin Moses
First 5 Off: Lionel Dotson, Ryan Grice-Mullen, Kory Sperry, Pat White, Andrew Gardner
Next 5 Off: Erik Walden, Austin Spitler, J.D. Folsom, Chris McCoy, Andrew Hartline

Some notes on this, keeping in mind that this is very preliminary for now:

• The most surprising event that could really change the above would be if one of the young potential returners prove to be too good to let go when they get their shots to return kicks during the preseason. That means guys like Tristan Davis, Taurus Johnson, or Marlon Moore could win a spot if they prove to be potentially elite return men. Otherwise look for some combination of Patrick Cobbs, Davone Bess, Brian Hartline, and Nolan Carroll to handle return duties.
• If the Dolphins do look to keep a "return specialist" - a sixth receiver, for example, then they could go with just four outside linebackers or seven defensive linemen.
• Some might think three inside linebackers is too few. But I figure the Dolphins will have at least one and possibly two (Spitler and Folsom) on the practice squad.
• Pat White's days are numbered. Count on it. He better show a lot of improvement in the preseason.
• I'm fairly confident that those are the nine offensive linemen that will make the final roster. But I have no idea who will start where. I just hope Tony Sparano figures it out soon so that the unit can start to gel.