). ▁ ▁He ▁replaced ▁Les lie ▁Bass ett , ▁who ▁retired . ▁D augh ert y ▁was ▁co - ch air ▁of ▁the ▁composition ▁department ▁with ▁composer ▁William ▁Bol com ▁from ▁ 1 9 9 8 – 2 0 0 1 , ▁and ▁chair ▁of ▁the ▁department ▁from ▁ 2 0 0 2 – 0 6 . ▁ ▁At ▁the ▁University ▁of ▁Michigan , ▁D augh ert y ▁ment ored ▁many ▁young ▁compos ers , ▁including ▁ ▁Clar ice ▁Ass ad , ▁D erek ▁B erm el , ▁Gab ri ela ▁L ena ▁Frank , ▁Krist in ▁K uster , ▁David ▁T . ▁Little , ▁Jo el ▁P uck ett , ▁Andrea ▁Re ink em ey er , ▁Ar l ene ▁Sierra , ▁D . ▁J . ▁S par r ▁and ▁Roger ▁Z are . ▁D augh ert y ▁has ▁organized ▁res iden cies ▁of ▁guest ▁compos ers ▁with ▁performances ▁of ▁their ▁music , ▁including ▁Louis ▁And ri essen , ▁Michael ▁Col gr ass , ▁Michael ▁Tor ke , ▁Joan ▁Tower , ▁B ets y ▁J olas ▁and ▁Gy ör gy ▁Lig eti . ▁He ▁has ▁also ▁composed ▁new ▁works , ▁including ▁Ni ag ara ▁F alls ▁( 1 9 9 7 ) ▁and ▁B ells ▁for ▁Sto kow ski ▁( 2 0 0 2 ), ▁for ▁the ▁University ▁of ▁Michigan ▁Sym phony ▁Band ▁and ▁its ▁two ▁most ▁recent ▁conduct ors , ▁H . ▁Robert ▁Reyn olds ▁and ▁Michael ▁Ha ith cock . ▁ ▁D augh ert y ▁organized ▁a ▁three - day