Two quick things:
1) For all the talk of Ray being a poor defender, I'd like to know exactly who people think is going to be a better defender at the 2 spot. This league is absolutely full of shooting guards who can score, but how many of them actually make any attempt at playing defense? Outside of Kobe, D-Wade, and Manu Ginoboli, very few. Ray actually is one of the better defenders simply because he tries. I'm shocked how many people on this board take zero consideration into defense when they want to bring matadors like Amare Stoudemire in here who have never been part of anything close to a title contender because they play zero defense. Related to that, what exactly quantifies a valuable player to some people? That he looks good on your fantasy team?
2) This notion that the C's aren't athletic enough to compete is only partially true. I admit there's some truth to that. I think that's why we struggled with Atlanta even two years ago. I think that was also something to do with our size, something that Rasheed and Sheldon help with. But I also think people are really underestimating the Celtics' motivation right now. Management's decision to rest anyone on the team who even has the slightest bit of pain has sent a pretty clear message to the players that winning in the regular season isn't a priority. Thus, it's little wonder they're not kicking butt like they used to.
1. Starting 2-guards I'd consider to be better defenders than Ray Allen:
Courtney Lee, Demar DeRozan (barely), Andre Iguodala, Kirk Hinrich/John Salmons, Carlos Delfino, Dahntay Jones/Brandon Rush, Joe Johnson, Dwyane Wade, Vince Carter (barely), Stephen Jackson, Caron Butler, Arron Aflalo, Brandon Roy, Ronnie Brewer, Thabo Sefalosha, Corey Brewer, Kobe Bryant, Jason Richardson, Jason Kidd (guards shooting guards for much of the time because they play Terry and Barea so much), Bogans/Ginobli, Trevor Ariza and Devin Brown. Even if you take off DeRozan and Carter, Ray's in the bottom third of the league.
Starting 2s I'd consider to be on par with Ray defensively:
OJ Mayo, Kevin Martin, Anthony Parker.
Starting 2s I'd consider to be worse than Ray defensively:
Eric & Ben Gordon, Curry with Golden St., Danillo Gallinari (or is he a 3?)
2. I think our athleticism disadvantage has hurt us in a big way on the boards. Ray's become one of the poorer rebounding guards in the league, definitely the weakest rebounding link in what is otherwise an average rebounding starting line-up.