If one more person makes a statement about chemistry I'm going to stab everyone within a 5-mile radius... KLJSBGASRJKGRAKBAJSDFBGLASEGFTAWRG. OK. Moving on.
You have the benefit of hindsight. I love the guy, but it was Trot's time to go. He didn't do a good job protecting Manny in the 5 spot (high average with an "empty" bat...no power). We needed an upgrade, and Drew is an upgrade. He's coming into his own. You need to give players that switch leagues and coasts time to adjust. Drew looked great at the beginning of the season, and then crashed into the right field wall. Now, I know he's had injuries in the past, but that was a HARD crash. That would take anyone out. I don't think Drew was 100% better from that crash and I still don't think he is, but he had a great game yesterday and looked the best that he has since he was hitting ~.400 a month or so ago. Give it some time, and you'll be happy that we have Drew instead of Nixon. Yeah, the price is a bit ridiculous, but he's an upgrade.
Besides, let's not worry about finances. You have to remember that we are the Boston Red Sox. We have financial muscles, so let's flex them. They'll let Curt walk after this season, giving us that $13 million to play around with. Clement's contract will be off our hands (right?) and we'll have more to play around with. Among other expiring contracts, the Sox will have enough money. As I said before, we've obviously overpaid for Drew, but the point is we have him now and he'll be better than Nixon was. When it comes down to it, we upgraded the team. Period.