Dolphins head coach Joe Philbin was at the source of some mild team controversy earlier this week, when he was asked about the job security of starting quarterback Ryan Tannehill but gave an ambivalent response. Philbin later expressed regret that his noncommittal approach to the question created a distraction for the club, which has fallen to 1-2 after a promising opening week win against the Patriots.

According to Jason La Canfora of CBS Sports, however, a deeper and more troubling internal struggle may be brewing in Miami. La Canfora writes that Dolphins players have expressed concerns with Philbin and his coordinators, and the relationship between Philbin and team executive Dawn Aponte has become frayed. Aponte hired former Jets GM Mike Tannenbaum as a team consultant, but since Tannenbaum’s primary job is as an agent representing coaches–like Seahawks defensive coordinator Dan Quinn, who will likely be on the list of top head coaching candidates after the season–it is fair to wonder how much longer Philbin will be roaming the Dolphins’ sidelines.

La Canfora adds that owner Stephen Ross has not, as he promised after the Richie Incognito/Jonathan Martin debacle, taken a more active role in the guidance of his team, but he is said to be covertly trying to lay the foundation to trade for current 49ers head coach Jim Harbaugh. Between those rumors and Philbin’s apparent wish to play backup signal-caller Matt Moore–which has displeased the front office, who have committed to Tannehill–the Dolphins may soon be in for a second front office overhaul in as many years.