I'm from Indianola and I struggle with the same thing. They haven't been competitive in football or basketball in at least 10 years. However, they were capable of winning a state championship in basketball in 2000 and having several teams ranked in the top 5 in the years before and after that. Football has always been tough but they managed to field some competitive teams.
I get that a town the size of Indianola, or Marshalltown for that matter, will have trouble keeping up with the WDM and suburban schools. Their talent pool is bigger and they are better funded. But that was probably the case to in years we've been competitive.
At the same time, after 7-8 years straight of getting our ***** kicked in everything, at some point you just wonder if you belong down a level.