I'd make that trade quick before he pulls the offer. Personally, I think Best and Gore are a coin flip. I don't see you losing anything here. Remember, Best has been injured the past 3 weeks so it's hurt his production. He faces a tough Giants run defense so his numbers will be down again this week but after that he should be a beast unless his turf toe injury nags him the whole season (and I don't think it will). You give up a little at WR but who cares, he's your #3 WR and you'd only play him during bye weeks. I think the upgrade you get at QB MORE than makes this trade good for you.
This aint a NYC auto garage, if it aint broke, dont fix it.
12 team redraft: Rivers (Q1), CJ (R1), McFadden (R2), B Wells (R3), Caddy (R4), Forsett (R5), AJ (W1), Fitz (W2), Royal (W3), Sims-Walker (W4), V Jax (W5), V Davis (T1), Kaeding (K1), Jets (D1)