If we are targeting Boyd and somehow manage to land him (which would be a massive get, but highly unlikely), then that would be a great start to restructuring our spine for the future. I would not want to give up Hendo to acquire him though as I feel like a forward line of Boyd and Casboult would be too slow and not overly great at applying defensive forward pressure. The way the modern game is going you really need to lock the ball in the forward 50 and not let it get released so easily. This is where Boyd at FF and Hendo at CHF with Waite there for 1-2 more years while we develop a third tall would be the perfect setup.
Our list has holes in it all over the park though and in my opinion, the midfield is the biggest priority.
We really need to address midfield rotations and outside speed because we are light on both quality midfield rotations and quantity.
We have too many inside types with average speed such as Curnow, McLean, Bell, Graham, Carrazzo, Cachia, Cripps, and Robinson (and that's excluding Gibbs and Murphy who are elite players but definitely not quick). Every team needs a few of these types, but when we take in all of Curnow, McLean, Bell, Robbo, and Carrazzo, we far too often get caught out running the other way. We need more speed and link up play to address our low uncontested possession count week in week out. We need quality and quantity.
Last year we made huge strides in list management by bringing in Docherty, Everitt, and Thomas for second round picks. We need a similar off-season again where we look to add midfield depth (with a focus on speed). Call it a rebuild of sorts, but we might be pleasantly surprised with the results if we don't look for a short term fix like we have in the past.