Has at least one of the owners not been on said management board for at least the last 5 years?
By my count, at least 6 clubs gone in that time, yes Northampton have come in (at a huge, forced, financial gamble) but the quality, participation, engagement, crowds, riders have all disappeared due to being so disillusioned with the sport.
So yeah, pull the ladder up jack, we're winning meetings on our tarmac track and getting some decent crowds. That's all well and good but they won't have many teams left to race soon enough.