Couple of problems if you use value from the trade value chart
Getting a 1rst and a 2nd means dropping 10 spots.....which is a lot. If we earn the 10th pick, I wouldn't want to drop to 20. And if we pick 15th, I certainly don't want to drop to 25.
Now your second trade
Still assuming we pick between 10-15, for us to get a 2nd and 3rd, we'd have to drop 15 spots. If we are picking 15th in round 2, the drop is 13.
So before the second round, we turned 10th+42nd into 20th+52nd+57th+89th. While on paper that seems great to some, the 57th and 89th are worth the dropoff of going from 10th and 42nd in round 1 and 2.
If we're closer to 15th, it becomes a tougher sell. We turn 15th+47th into 25th+57th+60th+92nd.
All in all, I don't think late 2nds and late 3rds are worth dropping down. Especially since this team isn't rebuilding (reguardless what anyone thinks they should do, they simply aren't).
So me personally, I'd take quality over quanity.