Redick has been a lot better the last 7 games at 34.9% and that includes the 0-6 last game, without that he had a string of 6 games where he was at 40.5% on 6.2 attempts. The 7 games before that he was terrible at 11.5%. His first game was great, but even including that his first 8 games he shot 24.3% from 3. The real question is, is Redick shot or has it just taken him awhile to get going and he will be back into the 40% shooter he has been in his career. I don't know the answer to that, but if you think he is going to go back up, now would be the time to acquire him before his value recovers.
I like Ball a lot in the right situation. The right situation is not New Orleans and it is not Boston. That said, if the price was low enough he definitely be worth taking a flyer on, I just doubt the price would be low enough.