I don't think Jesse ever coached a game at Blackham, I know he ran a lot of practices there though before the current facility was built. The games in 2005 when the Cajundome was still being used as a Katrina shelter were under Lee. Those did have a great atmosphere. I went to one of the games in 2016 and it was fun for nostalgia reasons but without some major renovations I think that would get old quick. I think doing a 3 game or so residency for non conference games in Blackham each year would be fun. Promote the crap out of it and make it cheap. All general admission $10 seats, $5 if you have a ticket stub from the previous football game. Maybe bring in a video board on one end that can show replays and be used to show how many points and fouls players have. But yeah I agree before you do a major renovation It would probably be better to start from scratch.
It would be an interesting question to ask the players what they prefer. I know the NBA Arena feel of the Cajundome and the renovated locker room are tools used in recruiting. Would they prefer those type of amenities in a cavernous atmosphere or the old school feel where a crowd of 3-5 K would provide some raucous energy they could feed off of in games.