They need to get more defense on the perimeter. Particularly on the wings. Regularly overwhelmed physically and athletically by opposing players at SG and SF positions.
They need a defensive orientated backup center for D.Jordan so that there interior defense won't fall apart whenever he goes to the bench. Spencer Hawes - an offensive orientated backup center - was the wrong type of backup center to acquire.
Yup. Doc the GM has so far only been able to acquire players that fit his preferred schemes offensively
I agree just looking at this roster quick it is clearly built with offense in mind. I would have to guess that Doc figures he can coach team D and make it work. I dont think this is the case.
Looking at the roster I see three players who I would consider above average for there given position on D, Paul, Barnes and Jordan. With Paul being a slight misinterpretation because his size limits him in elite matchups with PGs (he doesn't have the length like Rondo) Griffin's average do to lacking ideal length. The rest of the roster is average at best.
Compared to the Cs team that Doc won a ring with. KG, Per, Rondo, Posey and Pierce where all above the league average as defenders at their given positions.