In April 2009, Wettberg returned to managing, taking over SV Seligenporten, a team which had not won a game in seven months and sat on a relegation rank. He successfully navigated the team through four relegation deciders, maintaining Seligenportens league place. The final game was a 1–0 win over SpVgg Landshut, a team he had coached three times before. With this win, Wettberg continues his run of never having been relegated with a club he coached. Wettberg successfully took Seligenporten into the Regionalliga Bayern, stepping down from his role at the end of the 2012-13 season to take up coaching at amateur club ATSV 1871 Kelheim.