OneDumbG0
Find Your Own Fire
I think teamwork is being ignored as a factor here. If DD's and Elektra's teamwork has been established, I think that would prove a significant factor here. They've obviously both been taught by Stick and have a very deep personal and spiritual connection. But I can only remember a few fights where they actually fight side-by-side. Against Morbius and then the Snakeroot in 'Fall From Grace,' and against Bullseye in 'The Murdock Papers.' Obviously, they must have fought side-by-side more often than that. Any DD experts know how well Daredevil and Elektra work as a team? Because my initial impression is that Daredevil and Black Widow actually have more experience as a team than these two since they were partners for years. But I could be wrong.
If they only fought side-by side a few times, and nothing demonstrates a real advantage in teamwork between the two, then I don't think their similar tutleage under Stick or intimate knowledge of each other makes a big difference against Cap and Black Panther. After all, they've also trained together in the Avenger's Mansion. Maybe not as a duo very often, but enough that they're familiar with each other's fighting styles and moves.