So find a world (and not necessarily a team) you like, and stay in it.
The problem of too many openings persists, obviously, because demand is far outweighed by supply. In a business that sells consumable goods, they would cut their output until supply fell enough to come closer to the actual quantity demanded. In HBD, the good (in this case being a season of HBD) that is produced is perpetual, so once a season is "consumed", another good is automatically produced to replace it (the next season), even if demand isn't there for it.
WifS has tried to help the supply situation by preventing more worlds from being created, but this doesn't actually cut supply. It simply prevents it from growing. So one of two things has to happen if WifS has a problem with there being too many openings. Either supply needs to be cut (by worlds being shut down) or either demand or quantity demanded needs to rise (which is far less likely and much more difficult to influence).