Hakan ya kasance karo na 2 a jere da kungiyar ta hadu da rashinn nasara a wasannin da ta buga, kuma matakin ya sauke matsayin kungiyar zuwa ta 10 a teburin Bundesliga.
Roger Schmidt, mai shekaru 49 a duniya, ya tsallake zuwa Leverkusen ne a watan Afrilun shekarar 2014, daga FC Salzburg. Karkashin jagorancinsa, kungiyar ta kai ga zagayen rukuni na gasar cin kofin zakarun Turai har karo 3. A kuma cikin wasanni 125 da kungiyar ta buga a shekaru 3 da suka wuce, kungiyar ta ci nasarar wasanni 62, da yin kunnen doki a wasanni 27, yayin da kuma ta yi rashin nasara a sauran wasanni 36.(Bello Wang)