In another thread, I mentioned that Hasegawa needs an enforcer next to her and there's no reason why the Bernie/ Rodri midfield (when they play) can't be mirrored.
Castellanos is 'okay' but she's pretty static and needs time and space to see a forward pass. I don't mind Hasegawa's busy bee-like status on the pitch, but because her midfield partner is so static, she can't go into any spaces to receive the ball, turn and move forward.
This is forcing Hasegawa to take time to get into the game as she's reactive with the opposition play and what's going on rather than having a partner that allows her to be proactive, like Rodri allows Bernie to do.
We have an amazing midfield potential that oppos should be afraid of and it's super frustrating to me that this is so obvious, from what I've watched, so far.