Chris Holder is not in your declared 1-7 and to introduce him (or any other rider), there are three options:
1. Bring in another rider with an average equal to or less than the rider he is to replace. Unlikely to help your situation unless acted on before the new averages come out.
2. Redeclare your team to the 42.5 points limit which means that you can do whatever surgery you want up to the average limit - based on the CMAs of riders at the time of the redeclaration. There is no limit on the number of 8+ riders and you can’t have any riders who rode for you last season and not in your initial 1-7 this year.
3. Keep your current team and pray for a miracle.
I’m sure there are probably other options using a combination of the above. I still don’t think there is any need for panic but I’m sure we will find out more over the coming weeks.
Also, once a rider is released, he cannot be reintroduced at a later date.
All subject to the usual caveat of approval by MC or the purchase of bricks or any other suitable bribe!