Trade for Miles Austin.?

I have Andre Johnson and Calvin Johnson as my starters, should I trade one of them, if they accept, for Miles? He probably wouldn't accept Calvin, but I am pretty sure he would Andre. Andre hasn't had a great year so far, injured and plus the Texans run A LOT now. Or should I package Calvin with another WR? Like Percy Harvin or Dez Bryant. Or Calvin and Colston?