In summer 2006 the club signed Federico Marchetti, which saw Coser became 3rd goalkeeper. In January 2007 he was signed by Pergocrema in temporary deal.[1]
In January 2008, Acerbis left for Triestina and Coser became Marchetti's backup. Coser made 11 appearances in 2007–08 Serie B (all in the second half of season), as the holder of no.1 shirt.[2]
In summer 2008, Marchetti left for Cagliari, and Coser became new signing Antonio Narciso's backup. He was released for free in June 2009.[3]
In 2010, he was signed by Ascoli on a two-year contract.[5]
Novara
In 2011, he was signed by Novara along with Simone Pesce, for free and €150,000 respectively.[6][7] On the next day Novara also signed Luigi Giorgi for €1.6 million.[6]
Vicenza
In 2012, he was signed by Vicenza on a three-year contract, with Alessandro Bastrini moved to opposite direction.[8] The club also signed Alex Pinardi from Novara, and sent Alain Baclet to Novara.[9] All 4 players were valued for €1 million accounting value, thus no cash were involved in the swap deals.[10] The club relegated at the end of season.
