Bozak has had his best year yet points wise and he plays good D, can kill penalties and do PP service. He wins lots of faceoffs (Kadri never will). I am quite all right with Bozak sticking around as a 3rd line centre at the right price - and Boyle as a 4th too if they can get him signed. 

If Kadri is worth something to someone in a trade, his value will never be higher - and the Leafs need Dmen badly...No one will give up much for JVR or Bozak and I think Nylander is just too good to give away right now.