Our weakness at defending behind the line seems magnified by how poorly we shoot from there. That was one thing I loved about the 09 team - Lawson Green and Ellington could all consistently hit 3's. When you can match the other team's spurts of hitting the deep ball it does not appear as if you are closing control of a game you should win easily
I believe this year Britt, Berry, Jackson, and Paige all shoot it well enough for us to be very proficient from 3; which is to say I don't see many other teams glaringly outscoring us there, unless the other team jacks up an obscene number of them.
I don't think we lost games in second halves last year because opponents shot a high shooting percentage on an overload of threes. I think we could look back and see that we had few guys (with Pinson out, Paige not 100% physically, and JP not 100% bought in mentally), that just couldn't defend on the perimeter or on drives to the hoop.
Even when we look back to the '05 and '09 title teams, and all the way back to the '93 teams, we had a great blend / balance of inside / outside:
Donald Williams / Montross - Lynch
McCants - Felton / Sean May - Marvin Williams
Ellington - Lawson - Green / Psycho T - Deon Thompson - Ed Davis
Take away or even slightly diminish the contributions the bigs I have listed, and there's no way we have any of the last three titles.
I strongly believe this team has plenty of outside shooting, to fulfill that need in the inside / outside balance. I think its if Meeks and Brice both get in foul trouble (or something worse happens that I won't mention, that begins with I) .... that's what's more worrisome