Disclaimer- in the short term I can only do the summer challenge, so my feedback isn't as important for the next challenge

. I also don't want a lack of me participating in the next one to be perceved as a result of the ruleset. (I'll eventually figure out how to balance teaching and children enough to play games... not there yet.)
Question- does the AI handle rights correctly now? I feel like that would be a good balance of the RFA thing- if it handles it right.
In the current challenge, I almost find the under 26 portion impossible. Every single team overvalues their prospects now (which isn't a bad thing) but I couldn't trade Lecaviler for 2nd line guys straight up. (It could be me of course). I feel like the old UFA rules with the pyramid served the purpose well, although a bit confusing. (Off the top of my head, 1 player with Very Good reputation with salary up to $3 million, 2 good up to $1.5 each, two wavier claims, etc.) I like the idea of having a 'hand' full of options and you have to pick the one or two that work. Currently, it's either draft (and those players won't be ready for how long most people play challenges), or trade. There is no other way to build. And (this may just be sour grapes since I suck in the challenges in the new EHM) since I trade poorly, I'm up a creek. I also agree with budget constraints if other things get opened up.
Lastly, at risk of being annoying, I'll repeat that I believe the best course would be to ensure some variety in the challenges. I think it was the Sharks one went well with the 'rebuild' but then the interest in the same concept again wasn't so high.