Not a complete idea so keep that in mind but here goes.
Do not resign Miles or Howard. Trade out Harris, Watson, Bell and Big Al.
Go after Steve Nash, Brandon Rush and James Harden. Draft Marshall.
Resign Tinsley, Carroll and Evans.
That gives us: Favors, Millsap, Kanter, Evans, Hayward, Rush, Tinsley, Nash, Marshall, Harden, Burks
Getting a 3rd string C/PF and another SF are needed. Thoughts?
I like the way you think. I would try to do the same but I would draft Lillard. The only problem with the way you and I think is that its dreaming and not reality. When you trade players you usually pick up players of equal value. So when we trade harris, Watson, Bell and Big Al we end up with other players that cost us the same, leaving no room for Nash or Harden. You'd have to trade big Al and Harris to a team way under the cap or amnesty one of them to be able to afford Nash or Harden. Moreover, we don't have a draft pick at all in this draft as of right now.
Assuming a team way under the cap picked up Al and Harris, it would take a max offer to pry Harden away from OKC and at least 10 if not 12 million to get Nash from Phoenix. Reality sucks.