▁Account ing ▁Foundation . ▁ ▁He ▁also ▁serves ▁on ▁the ▁International ▁Ad vis ory ▁Board ▁of ▁Junior ▁Ach iev ement , ▁the ▁Executive ▁Council ▁of ▁the ▁Inner ▁City ▁Sch olar ship ▁Fund ▁and ▁is ▁President ▁of ▁Big ▁Brothers ▁Big ▁Sister s ▁New ▁York ▁City . ▁ ▁He ▁serves ▁on ▁the ▁Executive ▁Committee ▁of ▁the ▁National ▁Corpor ate ▁Theater ▁Fund ▁and ▁as ▁a ▁board ▁member ▁with ▁the ▁New ▁York ▁City ▁Bal let . ▁He ▁is ▁also ▁on ▁the ▁board ▁of ▁the ▁World ▁Trade ▁Center ▁Memorial ▁Foundation . ▁He ▁has ▁stepped ▁down ▁as ▁the ▁Chair man ▁of ▁P w C ▁on ▁June ▁ 3 0 , ▁ 2 0 0 9 . ▁On ▁October ▁ 1 2 , ▁ 2 0 0 5 , ▁Mr . ▁Di P ia zza ▁was ▁appointed ▁to ▁a ▁second ▁four - year ▁term ▁as ▁chairman ▁of ▁the ▁Price water house Co op ers ▁global , ▁beginning ▁on ▁January ▁ 1 , ▁ 2 0 0 6 . ▁He ▁stepped ▁down ▁as ▁the ▁Global ▁Chair man ▁on ▁June ▁ 3 0 , ▁ 2 0 0 9 ▁making ▁way ▁for ▁Dennis ▁N ally . ▁ ▁Rec ently , ▁Mr . ▁Di P ia zza ▁has ▁been ▁a ▁member ▁of ▁the ▁Committee ▁on ▁Capital ▁Mark ets ▁Reg ulation ▁which ▁has ▁been ▁mand ated ▁to ▁assess ▁the ▁impact ▁of ▁the ▁current ▁U . S . ▁regul atory ▁environment ▁on ▁the ▁compet it iveness ▁of ▁the ▁U . S . ▁in ▁the ▁global ▁capital ▁market place . ▁On ▁January ▁ 2 1 ,