First off The Dolphins have been crap for going on 2 decades...
Tanking = getting worse, ( which probably for Us, is just about as difficult as getting better). We have to get worse than the almost mediocre we've been forever. Think the only way of actually Tanking, is pretty much just not showing up.
Giving up the move for Murray or Haskins, probably means a solid DL most likely and a draft of hopefully better players at needed positions. So, better players at needed positions and possibly a dabble here and there of better FA's and we are going to get worse and will have a better shot at a higher 2020 draft pick ?....lol, ya and theres that bridge for sale in Brooklyn.....
IMO its a QB now whether Murray, Haskins, Rosen, Garrapalo, Carr or whoever. There seem to be some good to decent guys coming to the surface to go after and who knows what will open up in this off season. But the opportunity is there This Year and I'm looking forward to seeing if the FO is on the same page......hey JMO...