I'll have to go back and look but I'm pretty sure he only came back into the fourth quarter after momentum had swung the Pistons way (because of Summers, Stuckey and Bynum's trapping and pressing). He did hit a big three to tighten the game to a 3 point margin with something like a minute to play, but I don't recall his defense having much to do with the Piston's success at all last night. But like I said I'll probably go back and look at the play-by-play to see when he came in.
Regardless, I watched several Milwaukee games last year on league pass because I was interested to see Ramon Sessions and Charlie V did not leave much of a positive impression on me.