The huge majority of SEWIFFL franchises are headed by what we expect to be lifetime, or at very least, long term owners. Occasionally we do end up with one year wonders. In recorded league history we have had two, both of whom left of their own accord, without controversy.
Elliot had an incredible record in his only SEWIFFL season, finishing 10-3 with 1609.46 points for and 1373.24 points against. When not taking into account a minimum number of games played, that is good enough for the highest average points per game in league history with 123.80 PPG.
Max did not have as glorious of a one year career in SEWIFFL, playing in the first season of recorded league history, possibly in the lost season, but finishing with a 6-7 record, 1572.30 points for and 1529 points against.