Hi Lukus,
It's a tricky situation you face, and something I am nearly sure will be a problem for all Sandi owners in the not too distant future.
Focussing on your direct situation, do you spend $100k, that could be used for upgrades, and secure yourself some back up in the Rucks, or do you downgrade Pyke to Derickx, securing cash, and also making some cash, lastly, do you just ride Pyke out.
Two of the scenarios involve getting Derickx, so let's look at a likely scenario for him in the next 2 weeks.
His Price is $216,000, and B/E is -10. With Pyke out, let's assume he is out until round 11, and with his his new R1 role Derickx can score 85 for the next 2 weeks. In that scenario Derickx price rises to around $294,000, and his B/E will still be low at around 5.
If you bring in Derickx for Holmes/King you spend $114k, but you get Ruck cover for when Sandi misses a game, and you might boost your round 8 and round 9 scores by 40 - 85 points. It also gives you the opportunity, with Dericks growth, to later in the season do a one up one down on Pyke/Derickx for a Minson type and get some cash, keeping in mind, you then lose your Sandi cover.
If you bring in Derickx for Pyke you still have the threat of a Sandi out hanging over your head, though you can wear that, or more easily trade Sandi to another Ruck, now he has risen so much in price.
When comparing that 2nd option to just riding Pyke out, I think unless you are getting more than one donut, I'd prefer to ride Pyke out. You possibly intended to upgrade Pyke in round 10 anyway, and if you are prepared for the inevitable tough call
WHEN Sandi has an out, I think that's the course I'd take, as it uses less trades, and still fixes Pyke in the long run.
As I said, not easy, as there are many scenarios that can Work against you.
Good luck