 Also, the year also brought a spin-off league, the af2, intended to be a developmental league, comparable to the National Football League's NFL Europe.There was a lot of expansion in the 2000s.Expansion teams included the Austin Wranglers, Carolina Cobras, Los Angeles Avengers, Chicago Rush, Detroit Fury, Dallas Desperados, Colorado Crush, New Orleans VooDoo, Philadelphia Soul, Nashville Kats, Kansas City Brigade, New York Dragons and Utah Blaze.