"Never thought they would be able to play", seems to mean that someone defied expectations. If they were OLD expectations, he'd likely be talking about Steph. If they were first impressions being defied, then it sounds like it could be Rafe.
"Game I never saw" could mean two things. A subtle player or in fact, someone who did nothing. That phrase is equally applicible to either and thus could be applied to either Lydia OR Danni. Heck, it could even mean Rafe, because a lot of his button pushing was disguised by Steph's in your face style.
To me, each of the four is potentially representible by at least one of these phrases. So it hasn't helped ME guess at all.