Comparisons between speedway and football are worthless, speedway teams are built to a points limit so provided you are on or under the limit after the change then what's the issue, some people suggesting that teams should stick with the same riders are often the first to complain and/or stay away when the team is rubbish.
We've had several seasons at Wolves where the team required changing but wasn't and the season fizzled out, I'm all for changes.
Woffinden for Holder is light years better than guests and r/r