 Nyorai kuenderera mberi kweiyi ndima - Jock Stein akasiya Hibernian kuti ave maneja weCeltic muna 1965, naMcGrory achitora basa reClubs Public Relations Officer. Somutambi, Stein akanga ambotungamirira Celtic kuti vabudirire muligi uye mukombe kaviri muna 1954, uye ipapo semutungamiri akatungamirira Dunfermline kukunda mukombe wekupedzisira weCeltic muna 1961. Paakapfuurira kubva kuna McGrory, Stein akatora kutonga kwakazara kwezvinhu zvose zvechikwata. Iye anoonekwa somunhu ane chiono chebhora; kuchinja rutivi runoshaya nhungamiro uye rwakapfuura makore anenge masere pasina mukombe kuva chikwata chakanakisisa muEurope, zvose apo vachitamba nhabvu inofadza. Mukupesana nevakamutangira, aibatanidzwa zvakanyanya mukudzidzisa vatambi vake tracksuit maneja. Uye nepo kurovedza kwakanga kwambosanganisira zvikurukuru kumhanya munhandare, iye akaunza kurovedza nebhora mukurovedza. Kukunda muScottish Cup Final kwakaitwa mukati memavhiki ekutora matomu semaneja, yakateverwa muna 1966 nekutanga kwemapfumbamwe akateedzana makwikwi eligi. Mumwaka wake wechipiri wakazara semurairidzi, Stein akatungamira Celtic kubudirira mumakwikwi ese mashanu avakatora chikamu quintuple, kunyanya kukunda kwavo 2 × 1 muLisbon pamusoro peInter Milan mu1967 European Cup Final. Akatungamirira Celtic kune imwezve yekupedzisira yeEuropean Cup muna 1970, achirova Benfica neLeeds United munzira, asi akarasikirwa naFeyenoord 21 mushure mekuwedzera nguva mumutambo wekupedzisira. Akakuvadzwa zvakakomba mutsaona yemotokari muna Chikunguru 1975 uye akapedza gore rakatevera achipora, nemubatsiri wemaneja Sean Fallon achitora mabasa ekutungamira emwaka. Pakudzoka kwake mumwaka wa1976-77, Stein akatungamira Celtic kuenda kuligi nekapu kaviri; aya aizove kukudzwa kwekupedzisira kwaaizohwina kuCeltic. Pashure pokukunda mikombe mikuru 25, Stein pakupedzisira akarega basa rake muna 1978. 