Yes, the Dolphins have filled an enormous void at defensive end the past two days by re-signing Andre Branch and trading for Williams Hayes.
Yes, the much needed upgrade at guard has begun because Ted Larsen is visiting Friday and expects to sign a three-year deal (per the Chicago Tribune) for approximately $9 million and that leaves only one guard spot unattended.
Yes, the Dolphins are in the midst of trying to address their terrible (30th in the NFL) run defense from a year ago by adding Lawrence Timmons or Zach Brown at middle linebacker, moving Kiko Alonso to weak side linebacker and signing Alonso to a long-term deal as well.