A few observations:
1. We have a community standoff that no one wants to talk about between the university and the locals. The locals here take the university for granted while the university takes the locals for granted. The locals know that the university is here, and they are happy with what the university does for the community. But they don't want to fly the colors in their businesses or support it like we would like them to. On the other hand, the university thinks that because they exist that the locals should just pay up and support without bringing any real message. Neither side wants to budge, so here we are. The university needs to give the "why," and the community needs to follow it if the message is on point. Win/Win for both.
2. The new stadium might fix some attendance issues early on, but if the gameday experience doesn't improve (product on the field, long concession lines, etc.), we will be back to the usual 12-16k crowd within the next 5 years after the stadium is renovated. Example: Basketball games at the renovated Cajundome.
3. We are Cajuns. It's in our blood to adapt since the days we settled here. Nothing needs to be manufactured for us to have a good time. As long as we have some music and people, there will be fun. We need to stop "manufacturing" fun. Create an organic environment (quit moving the student tailgating, quit constantly changing parking rules, etc.) where the locals can adapt and create a good time.
There's more I'm sure, but these are just a few things I have noticed over the years.
Also FWIW, the 2011 season saw the largest avg. attendance in Cajun Field history. In that same year, TSAB went undefeated and was ranked #1 in the country for most of that year until their loss to Alabama in the NC game. Also, Tiger Stadium is not completely full like it used to be unless Ole Miss and Alabama are in town which means not all of Lafayette is there like some of their fans like to claim. Until we start picking the low hanging fruit of fans with a message on the "why," we will continue to have these issues even with a new stadium.