1. Royce O'Neale
The case for trading O'Neale has a lot of similarities to that of Allen, which is what makes him such a strong candidate to actually be moved. Right now he's worth more to the Suns on this roster than elsewhere, but situations change quickly in the league.
O'Neale was one of the few players who had a decent series in the sweep at the hands of the Minnesota Timberwolves, and he too signed a new four-year, $42 million contract this summer. An even easier number to move - and representing some of the best value in the NBA today - which is why he tops this list.
O'Neale can shoot the ball well from deep and is also an underrated defender, and is now locked up for four seasons. The only catch is that at 31-years-old, this is most certainly the player he is going to be. Which is no bad thing, it just may hamper his trade value somewhat if another team comes asking.
He's going to come off the bench in Phoenix, and the fit next to Booker and Durant is a good one. If Allen proves too rich for other teams to consider though, then O'Neale is the other player they are going to enquire about. Imagine being able to keep three stars, Jones plus Allen, and still get potentially get better. Exactly why you find O'Neale here.