Thing about trading down is, that you need to get an asset back. Best way to do this is to look at a team who would consider combining their pick (like Minny, Orlando, Sac) with vet(s) (Shabazz, Gorgui, Gordon, Vucevic, WCS, McLemore). Then think, well, does that position us better to win next year? In the examples I give, probably not really.
I just can't see anyone in the top 10 who has a realistic chance of being a traded, that we would actually want. If Collins looks nice, you just trade for him in the regular way. So like Collins for a future first (not next year), a second round pick and Rozier,and Yabu. Sac may jump at that deal with their pick around 8, 9. Rozier is kinda on fire at the moment..