More of a concern than the joker is having no reserve ,it's a matter of time before we have a pile up in a early heat and a team loses a rider and the meeting is ruined and a teams hopes gone .
Each team should have a reserve who can only take a max of two rides at anytime in the meeting, so not only them a chane to replace the injured rider also stops the kind of stunt the poles pulled in the final the other year ..i expect it won't change thou intill something like the above happens .