No way, take your wildcard now.
Tauchman is having a nice season we all agree, and he's still probably a sub 2 WAR player when its all said and done. A 35 year old Tauchman at ~$4Mish who turns into Josh Rojas will get you nothing at all. And if he's the same player, do you see anyway he has more value than he does right now? I don't.
Get him out of here and give Julks, Fletcher, etc. those AB's rest of the way.