Hartline coming back for Miami?

As we've been looking ahead to 2013 for teams around the league, one of the near certainties is that the Miami Dolphins are going to be addressing their need at WR with individuals pulled from outside the organization. This could include veteran free agents -- Greg Jennings has been a popular speculative choice, based upon his link to HC Joe Philbin -- as well as draft picks, and some mock drafts have them taking a player at the position (Tennessee's Cordarrelle Patterson is a popular choice). But what about the team's leading wideout from 2012, the one who already has a professional relationship with Ryan Tannehill?