On 28 July 2017, he moved to Górnik Łęczna to operate as an assistant in Tomasz Kafarski's staff, later working with head coaches Bogusław Baniak and Sławomir Nazaruk.
After just five matches in charge, the III liga season was suspended indefinitely on 12 March 2020 due to the COVID-19 pandemic,[6] and he left the club at the end of his contract.
[1] On 16 September 2023, when visiting Lechia to observe Widzew's upcoming opponents, Concordia Elbląg, he was greeted by the club management and former underlings, while home fans chanted his name during the game.
[10] After finishing the 2022–23 campaign in 6th and losing in the first round of promotion play-offs, Myśliwiec announced he would be leaving the club at the end of the season.
[13] On 5 September 2023, Myśliwiec signed a two-year deal to become manager of Ekstraklasa club Widzew Łódź, replacing the outgoing Janusz Niedźwiedź.