I understand this argument, but I also think that Pedroia can be just as effective in the 3 hole, potentially more effective. He could very easily be a 20 HR/35Double/20 SB/100 Run/100 RBI guy from the 3 hole. I am a big advocate on putting pressure on the SP, scoring runs early, manufacturing runs when needed, and utilizing speed at the top of the order. I think speed and it's affect on a pitcher has a big impact on the hitters after him.
Crawford is a game changing player. He can hit triple after triple after triple at Fenway. He can swipe bags, and he can manufacture runs. Is Pedroia a better 2 hitter? Probably. But when Crawford is playing well, it's not a big difference, and adding another run scorer to the top of the order would never hurt.
Also - if Ells has an OBP of .370, Crawford returns to form for a .350, and Pedroia has his usual .380, then there is only a 25% chance that none of them reach base in the first inning of any given game. That means, ultimately, that Gonzalez will be hitting in the first inning in 3 of every 4 games with a runner on base, likely in scoring position with the wheels that all 3 of those players have, in the first inning, and he hits around .340 with RISP, .305 with RISP and 2 outs, so you're going to score some first inning runs quite often. Getting that early lead could help with our pitching, as well, by taking the pressure off of them.
So what I'm saying is that Crawford hitting 2nd will help our pitching Joking, but I think it would have a very strong effect on this team if he hits 2nd, especially because he's a guy who takes his offensive struggles on the field with him.