speedway has to be about continuity, that goes for regular meetings and regular teams.
if you have no meetings for a number of weeks, people realise they can do without and that means future visits will get less and less.
I'm also one that thinks that teams need some continuity, give supporters riders to support as 'one of your own', buy their merchandise etc, and it should work both ways.
with squad systems, I can't see that happening, I think it will be a case of 2 teams riding against eachother but no one really knowing who will be in the teams