[17][18][19][20][21][22][23][24] The newborn Roman club, even though it was his first experience, soon achieved prestigious results: in Italy the final of the Italian Cup and of the Italian Supercup where in both cases they lost 3-0 to the very strong Sisley Treviso, while in the European field he triumphed in the CEV Cup against the Belgian team Maaseik 3-0[25][26][27][28] After two seasons the club decides not to renew its membership to the top division, and Serniotti flies to Russia on the bench of Volejbol'nyj klub Jaroslavič.

In the summer of 2013 the club encountered financial difficulties, which forced it to sell many of its strongest players, including Osmany Juantorena, Matej Kazijski, Jan Štokr; among the departures was also the coach Radostin Stojčev, who had reached the end of his contract.

The adventure at the helm of the Trentino bench lasts only one season, in which he wins the Italian Supercup[46][47][48][49] and the bronze medal at the World Club Championship.

German Bundesliga[64][65][66][67][68][69][70] He calls as his second the Japanese coach Koichiro Shimbo with whom he obtained excellent results both on the national and European field.

In the 2017-18 championship he became coach of Asseco Resovia[88][89][90][91] in Polska Liga Siatkówki,[92][93][94][95][96][97][98][99][100][101][102] but in December 2017 he terminated his contract with the Polish team.

[145] Furthermore, at the end of the regular season he comes third again, thus reconfirming the position of the previous year and this time reaching the final of the playoffs[146][147][148][149][150][151][152][153][154] where he always meets the Reggio team that imposes itself for 3 to 1 in the Best of Five and gets the move to the SuperLega.