Keeping with their manager for the 2013–14 Serie A campaign, Coulantuono secured 11th place and some impressive performances, including victories of local rivals Internazionale and A.C. Milan. Before the start of the 2014–15 Serie A season, Coulantuono committed his future to Atalanta, however, the season did not go well and after a poor run of form he was dismissed on 4 March 2015 and replaced by Edy Reja, leaving Atalanta only 3 points above the relegation zone.
Coulantuono's tenure at Atalanta was marked by a 11th-place finish in the 2013–14 Serie A season, featuring notable victories against local rivals Internazionale and A.C. Milan. Before the start of the 2014–15 Serie A campaign, Coulantuono committed to Atalanta, but the following season was unsuccessful, leading to his dismissal on March 4, 2015, after a poor run of form.