He has been a target every year by at least one team... and it goes nowhere fast.
He coached his other two kids through Iowa - he is not going to bail on his last one. Not to mention he already gets paid just as much - if not more - than he would make in the NFL.
That said its obvious that Pioli is going to say Ferentz first since they are friends - then he will wink and move on to a real target.
Ferentz will play who has the best shot of winning for him (hence Stanzi taking over from Jake) - he has plenty of loyality to his players but that does not mean they get to play.