Career
Coroian began football at CFR Cluj in 1993. He later went on to play for many years at Gloria Bistrita before moving back to his first team Coroian returned to Gloria Bistrita, being an emblematic player for this club
Coroian was a flexible player, with the ability to play in any midfield or forward position.
In 2009, he became assistant coach of Gloria Bistriţa. In April 2013, he began his first experience as head-coach, at Liga II team FCM Târgu Mureș.
He was sacked at the end of the season, being changed with Edi Iordanescu. In 2006 he was proposed for the Romania national football team, but never played for them.