After three unsuccessful years, Lechia wished to play football again independently which resulted in them having to re-start in the regional divisions of the sixth tier.
For an 18-year-old Bąk, this offered a chance for consistent playing time with the football team he grew up supporting.
To supporters, Bąk become the symbol of a "new" Lechia Gdańsk due to him being the only player to stay with the team from the sixth tier right up to the first division.
After the unsuccessful spell in Bulgaria, Bąk left Etar only six months after joining, returning to Poland to play with Lechia in July 2013.
In the last home game of the season against Pogoń Szczecin, Lechia celebrated the careers of Piotr Wiśniewski and Bąk.
Both players came on as substitutes in the 4–0 win over Pogoń, with Wiśniewski scoring the final goal of the game, while Bąk made an important save to keep a clean sheet for the team.