WMU, NIU, and almost Kent til they choked in the MAC-C(yikes) would say yes. Not as realistic in recent years with the AAC's success, but with their top schools going to the Big 12, we are back to a much more level playing field in the G5 IMO. Of course its mostly going to depend on having multi-year double digit wins, wins over P5 teams, and not getting blown out from the top tier teams..which isn't easy.