During his youth, due to his low height, the club paid a growth hormone treatment similar as to Lionel Messi's, but it never fully worked.
[2][3] After only playing two friendlies in the first team, Coleoni resumed his career with Peru's San Agustín and Chile's Magallanes, aside from lower league sides in his native region.
[5] On 17 December 2006, Coleoni was named manager of Gimnasia y Esgrima de Mendoza,[6] but was subsequently replaced by Ricardo Dillon.
[7] He narrowly missed out promotion to Primera B Nacional in his two seasons in charge, and later moved to Juventud Unida Universitario in July 2010 as a general coordinator.
[18] Despite suffering relegation in his first season, the club won the 2017–18 Torneo Federal A and subsequently achieved promotion to the Primera División and reached the finals of the Copa Argentina in 2018–19.