an agh ▁stayed ▁at ▁United ▁when ▁Do ch ert y ▁was ▁s ack ed ▁in ▁ 1 9 7 7 ▁and ▁became ▁assistant ▁manager ▁under ▁Do ch ert y ' s ▁successor , ▁Dave ▁Se xt on , ▁but ▁he ▁left ▁the ▁club ▁following ▁Ron ▁At kin son ' s ▁appointment ▁in ▁ 1 9 8 1 . ▁From ▁ 1 9 7 6 ▁to ▁ 1 9 7 9 ▁he ▁was ▁also ▁Northern ▁Ireland ▁assistant ▁manager ▁to ▁D anny ▁Bl anch flow er . ▁He ▁later ▁had ▁a ▁spell ▁as ▁coach ▁at ▁New castle ▁United . ▁ ▁A head ▁of ▁the ▁ 1 9 8 3 ▁season , ▁Cav an agh ▁was ▁h ired ▁as ▁manager ▁of ▁Rosen borg . ▁In ▁Norwegian , ▁the ▁terms ▁coach ▁and ▁manager ▁are ▁used ▁inter change ably . ▁Cav an agh ▁had ▁previously ▁done ▁an ▁excellent ▁job ▁as ▁coach ▁at ▁Manchester ▁United , ▁but ▁lack ed ▁ab ilities ▁in ▁team ▁selection , ▁tact ics ▁and ▁insp iration . ▁He ▁used ▁players ▁in ▁the ▁wrong ▁position , ▁and ▁instruct ed ▁the ▁ball ▁to ▁be ▁k icked ▁over ▁the ▁mid field , ▁making ▁it ▁impossible ▁to ▁use ▁the ▁play maker . ▁He ▁believed ▁in ▁breaking ▁down ▁the ▁players ▁and ▁then ▁building ▁them ▁up , ▁and ▁was ▁un arg u ably ▁good ▁at ▁the ▁former . ▁By ▁the ▁summer , ▁his ▁style ▁was ▁cost ing ▁the ▁club ▁players : ▁Kn ut ▁Tor b j ør n ▁E gg en ▁transferred ▁to ▁Or k anger ▁in ▁the ▁Four th ▁Division