▁in ▁Spain , ▁before ▁returning ▁for ▁a ▁second ▁spell ▁with ▁New ell ' s ▁Old ▁Boys . ▁ ▁Tow ards ▁the ▁end ▁of ▁his ▁career ▁he ▁played ▁for ▁Ch ac ar ita ▁Juni ors ▁and ▁Argent inos ▁Juni ors ▁in ▁Argentina , ▁Col o - Col o ▁in ▁Chile ▁and ▁Gr ass ho ppers ▁Zur ich ▁of ▁Switzerland . ▁ ▁Co aching ▁career ▁Gam boa ▁started ▁his ▁manager ial ▁career ▁co aching ▁New ell ' s ▁Old ▁Boys . ▁In ▁ 2 0 0 9 ▁replaced ▁Ric ardo ▁Ziel in ski ▁in ▁Ch ac ar ita ▁Juni ors ▁signing ▁until ▁June ▁ 2 0 1 0 ▁and ▁assist ed ▁Ric ardo ▁L un ari . ▁However , ▁they ▁were ▁s ack ed ▁before ▁the ▁end ▁of ▁their ▁contract . ▁On ▁May ▁ 2 0 1 0 ▁he ▁signed ▁for ▁CD ▁Ver ac ru z ▁of ▁the ▁Mexican ▁second ▁division . ▁On ▁September ▁ 2 0 1 0 ▁Gam boa ▁agreed ▁to ▁replace ▁Antonio ▁Moh amed ▁as ▁head ▁coach ▁of ▁Col ón . ▁The ▁board ▁of ▁direct ors ▁of ▁Col on ▁s ack ed ▁him ▁soon ▁after ▁the ▁club ▁lost ▁ 2 – 0 ▁against ▁O lim po ▁in ▁a ▁league ▁match ▁on ▁ 9 ▁April ▁ 2 0 1 1 . ▁ ▁On ▁ 1 8 ▁April ▁ 2 0 1 8 , ▁Gam boa ▁was ▁appointed ▁as ▁the ▁manager ▁of ▁Club ▁Ag ro pec uario ▁Argent ino . ▁He ▁left ▁the ▁club ▁one ▁month ▁later . ▁On ▁ 6 ▁November ▁ 2