Fans turning up is the biggest thing.
Loads of mentions of a lack of atmosphere and the ground feeling quiet on a midweek. All that is solve by having a good crowd. The Ricoh return game last time was brilliant. No frills, no fan zone, stupid queues for a pint. Not even a club shop. But, it was buzzing, people were up for it and the noise was fantastic.
There have been mid-week cup games where it has also been buzzing even with crowds of 12,000. Wycombe and Preston were great. Leeds many years back was good.
General things though: A shuttle train service would be great. I am no train expert, but surely between the hours or 1 and 3 and then 5 and 6, you could run a back and forth service to the Ricoh from Cov? It is a 5 minute journey and could be ran frequently. Trains from Nuneaton could terminate at the station between those hours and general public passengers could just change for the final stop? I honestly think CCFC, Wasps and the Ricoh as an events stadium having a station would be a game changer. I know most people going to an event/gig at the NEC would get the train so they can have a drink. Who wants to get on a bus? Brighton is the best example of this running well. Drink in the city until half 2 and jump on the train and be in the stadium within 15 minutes.